When you have such bad diarrhea that it feels like your cheeks are burning.

The word for a persons rear end spoken by people who use correct english

The correct spelling for a persons buttocks or behind.

The Americans are stupid and spell it "ass" like a donkey.

This term can also be used to insult.

The original spelling of the word that has now been high jacked by the dumb-arse yanks - still means a rear end or stupid.

a persons buttocks or anus.

see: backside · behind · seat · rump · rear · rear end · cheeks · hindquarters · haunches · bottom · derrière · Sitzfleisch · nates · sit-upon · stern · BTM · tochus · rusty dusty · bum · botty · prat · jacksie · bahookie · butt · fanny · tush · tushie · tail · duff · buns · booty · caboose · heinie · patootie · keister · tuchis · bazoo · bippy · batty · rass · fundament · posterior · breech

Cannot or will not make the effort. Does not give a shit.

A verb meaning "to be bothered", and invariably used in the past tense and in conjunction with the words "couldn't be". It originated in the North of England.