arse | ass (1)

Meaning: backside, bottom, buttocks

For example:

Larry reckons most of the nurses are nice, except for the one with a really fat arse.
Our boss got angry and told us to get off our asses and fix the problem.

Note: "Arse" is British and Australian spelling, and "ass" is American and Canadian spelling.

Quick Quiz:

If someone is said to have a big arse, it means they have a large