Definition of arsing:
(n) :
(Commonwealth, now vulgar) The buttocks or more specifically, the anus.
(n) :
(chiefly UK, Ireland, Commonwealth, derogatory, slang) A stupid, pompous, arrogant, mean or despicable person.
(n) :
(vulgar, slang, uncountable) Used in similes to express something bad or unpleasant.
(n) :
(vulgar, slang, metonymic, 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.
(v) :
(Commonwealth, slang, intransitive) To be silly, act stupid or mess around.
(n) :
(biochemistry) Abbreviation of arylsulfatase E, an enzyme, deficiencies in which are associated with abnormalities in cartilage and bone development.