(slang, vulgar, transitive, rare) To behave in a superficially polite or charming way while simultaneously acting in a deceptive, manipulative, or harmful manner.
All the while grinfucking Obama with talk of a smooth transition.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.