Akademik

arse
n. & v. (US ass) coarse sl.
—n. the buttocks.
—v.intr. (usu. foll. by about, around) play the fool.
Phrases and idioms:
arse-hole
1 the anus.
2 offens. a term of contempt for a person. arse-licking obsequiousness for the purpose of gaining favour; toadying.
Usage:
Usually considered a taboo word.
Etymology: OE aeligrs

Useful english dictionary. 2012.