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to kiss one's ass
01
to try to get something from a person by showing insincere kindness to them
What is the origin of the idiom "kiss one's ass" and when to use it?
The idiom "kiss one's ass" originated in colloquial English and is considered vulgar or offensive. It dates back to the early 20th century and is derived from the literal act of kissing someone's buttocks as an act of subservience or flattery. When used idiomatically, it refers to ingratiating oneself to someone in a servile or obsequious manner, often to gain favor or avoid punishment.