Arse.

Fool's Arse
Chameleon in the Shadow of the Arse
The Silent Corner and the Empty Arse
In Arse
Nadir's Big Arse
Ovarse
The Arse Now
pArse 7
A Black Arse
Sitting Arses
Enter Arse
Patiarse
The M-Arse-In (Live)
The Arse Songs
Skarse
And Close as Arse
In a Foreign Arse
Out of Arse
Arse Temperature Live
Firearses
Arse of the Moment
The Narse
Loops and Arses
There Goes the Arse (Live)
Roaring Arses ()
Offensichtlich Arsch
X My Arse
Sonarse
Every Arse You Hold
The Arse Chapel Concert
Tharse
Typicarse
The Appointed Arse
The Fall of the Arse of Usher
Arse of the Above
Arse, now?
Unarsed
The Thin Arse Sings Ballads
Clarse
Incoherarse

I know I have to do this!!

Guess the band!

Arse Centauri

Arsedra

Arsecon

Arse Majeure

Arse Desert

Le Arse ( my personal favourite  )

and some of the newer stuff..

Goblin's Arse

Arse Polaris

Tyranny of Arses

EDIT: Oh, I forgot one: Logos - Live at the Arse

Silly people! For shame!

Okay then, in keeping with the "backdoor" theme:

PFM:

Arse Lag

Photos of Arses

Arse Cook

Chocolate Arses

The Arse Became My World

Brand X:

Morroccan Hole

Is There Any Arse About?

Unorthodox Arse

Arse Product

Do They Hurt (Your Arse)?

Musks

Beatles (the definitive list):

All You Need is Arse

Please Squeeze Me (Arse)

Octopus's Arsehole

Yellow-Arsed Marine

Abby Load

The White Arse

I Wanna Hold Your Arse

Norwegian Arse (This Bird has Blown)

Let it Beep

Across the Uniarse

With a Little Help From My Arse

Dear Prude-Arse (Rear Prudence?)

I Am the Walarse

Arse Number Nine

Arseholution

What Goes on (In Your Arse)

I saw Her Arse Standing There

Love Me Arse

P.S. I Love Arse

A Taste of Arse

There's an Arse

Twist and Fart

Arseman

Good Day Arsehole

And Your Arse Can Sing

Proctologist Robert

I Want to Smell You

Got to Get You Into My Arse

My Arse Never Knows

Bum Together

Bumthing

Maxwell's Arse Hammer

Here Comes the Arse

You Never Give Me Your Arse

Mean Mr Mustard Gas

Carry That Arse

The End (no need to change that one!)

Her Majesty's Arse

All my Arse

Till There Was Your Arse

Hold Me Arse

Not a Second Arse

Any Arse at All

When I Get Arse

And I Love Her Arse

If I Smell

Drive My Arse

You Won't See Me Arse

No-arse Man

Think for Your Arse

I'm Looking Through Arse

In My Arse

If I Kneaded Some Arse

Run For Your Arse

Magical Mystery Arse

The Arse on the Hill

Blue Arse Way 

Your Arse Should Know

Arseberry Feels Forever

Penny Arse

Baby, You're an Ass Man

I'll Follow the Arse

Candy-Ass City -- Gay Gay Gay Gay!

Eight Arses a Week

Arses of Love

Every Little Arse

Don't Want to Spoil the Arse

What You're Pooing

A Hard day's Arse

Can't Buy me Arse

I'll Fart Instead

You Can't do That Arse

I'll Be (Around the) Back

Yer Arse

Mother Nature's Arse

Everybody's Got Something to Hide (in Their Arse)

Sexy Sadist

Felt'er Smelt'er

Humpy Pie

Good Arse

The Schlong and Windy Arse

Rocky Road Racoon

Back in the USSarse

Ass Onion

The Continuing Story of Bunghole Bill

While My Arse Gently Seeps

Happiness is a Warm Arse

Don't Pass me Gas 

Why Don't We Do It in the Arse

You've Got to Hide Your Arse away

I Need Arse

Another Arse

You're Gonna Lose That Arse

Arse to Ride

Arse Naturally

It's Only Arse

You Like Me Arse Too Much

I've Just Seen an Arse

I Dig an Ass

I Me Arse

Frigg It

 I've Got an Arse

Get Back (There)

Baby's in Back

Komm, Gib Mir Deine Arse

Enough! Enough! Don't arse me for any more....

Richardw wrote: A few of Zappa's albums : Freak Arse Absolutely Arse Lumpy Arse We're Only In It For The Arse Cruisin' With Ruben & The Arses Arse Meat Hot Arse Weasels Ripped My Arse Burnt Arse Sandwich Chunga's Arse The Grand Arse Over-Arse Sensation One Arse Fits All Arse Fury Arse Allures Arse Favorites Arse Tan Arse Dirt Sheik YerArse Joe's Arse You Arse What You Is Arse Arriving Too Late to save A Drowning Witch The Arse From Utopia Them Or Arse Arse Fish Shut Up N Play Yer Arse Arse From Hell

Love We're only in it for the arse

Anyway, I think it's better if its 'Ship arrive Too LAte TO Save A Drowing Arse'.

Also:

The Best Band YOu Never Heard In Your Arse

You Can't Do That On Arse Anymore Vol. 1-6

Arse The Hard Way (???)

Make An Arse Noise Here

Arse Beach is in fact something of an arse classic, containing as it does All I Want is Arse, Memoirs of an Officer and an Arse, and the afore-mentioned Taste of My Arse which has classic arse lyrics such as

"Ohhh, you look so hungry woman
how come you strayed in here with your eyes so bright
on this long hot night.
Could it be for a taste of my arse"

and the immortal

"I want to dynamite your mind with ARSE tonight"

Slayer:

Arse Awaits, Arse in blood

welcome back my friends to the arse that never ends

Just one more:

Deep Purple - Concerto for Arse and Orchestra