Definitions from Wiktionary ( )

▸ noun:  (Commonwealth, now vulgar) The buttocks or more specifically, the anus.
▸ noun:  (chiefly UK, Ireland, Commonwealth, derogatory, slang) A stupid, pompous, arrogant, mean or despicable person.
▸ noun:  (vulgar, slang, uncountable) Used in similes to express something bad or unpleasant.
▸ noun:  (vulgar, slang, metonymically, countable) A person; the self; (reflexively) oneself or one's person, chiefly their body; (by extension) one's personal safety, or figuratively one's job, prospects, etc.
▸ verb:  (Commonwealth, slang, intransitive) To be silly, act stupid or mess around.
▸ noun:  (biochemistry) Abbreviation of arylsulfatase E, an enzyme, deficiencies in which are associated with abnormalities in cartilage and bone development.

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