simple past tense and past participle of arse.

(Britain, New Zealand, Australia, Ireland, Newfoundland, vulgar, slang) bothered; willing to make an effort. / (vulgar, in combinations) Having a particular kind of arse

(current in South Africa, UK, Ireland, Canada (regional), Newfoundland, Australia, New Zealand, dated in New England, now vulgar) The buttocks or more specifically, the anus.

(slang, intransitive) To be silly, act stupid or mess around.

plural of arse / plural of arsis

Third-person singular simple present indicative form of arse

present participle of arse

(biochemistry) Abbreviation of arylsulfatase E, an enzyme, deficiencies in which are associated with abnormalities in cartilage and bone development.

(Trinidad and Tobago, vulgar) Annoying foolishness.

(slang) Enough to fill a person's arse.