bum

/bʌm/

noun

Meaning

The buttocks.
"Okay, everyone sit on your bum and try and touch your toes."
The anus.

Synonyms

arse,

ass,

backside,

behind,

bottom,

butt,

fanny,

heinie,

tush,

tushie

verb

Meaning

To sodomize; to engage in anal sex.

interjection

Meaning

An expression of annoyance.