U-bend 

When the tone of your fart goes from high to low to high

Man: *farts*
Other man: ah good fart but not a "u-bend"

U-bend by Tidy boy November 12, 2016

U-bend U-boat  

A turd that is submerged in the U-bend of the toilet like the german submarines (U-boats) used to hide beneath the surface of the sea. 9 out of 10 U-bend U-boats are unflushable in the average toilet.

For fucks sake, that U-bend U-boat just won't flush! Pass me the bog brush Dave, it turd bustin' time!

U-bend U-boat by MSN NINJA April 19, 2009

u bend blocker 

a turd so big that it blocks the u bend

u bend blocker by Joe Rodgers (cotk) January 21, 2006

U-Bend Acrobat 

A turd, that once dispatched has enough velocity to circumvent the U-Bend at the base of the toilet.

I knew I was shitting bricks, I looked between my legs on the throne and found I laid a U-bend acrobat!

U-Bend Acrobat by rc55 April 16, 2006

Cheltenham U-Bend 

Arranging oneself in such a position that when one sticks one's nose up the arse of a partner, and the partner farts powerfully, the gas enters the nose of the first party and leaves the mouth - thus tickling the balls of the farter.

Hmm that were a reet powerful Cheltenham U-Bend there our Kes.

Cheltenham U-Bend by GanglesWillSwarm2 March 21, 2009

u-bender 

Where you take a shit and its so heavy or fast it goes round the u bend and disappears!

Did you have a good shit?

Yeah it was a u-bender!

u-bender by WiganLad88 May 1, 2016

Ubend 

To imply that someone is a homosexual in a malicious manner.

"Oh hi Dave, UBEND!"

Ubend by TeeO85 December 18, 2008