(slang, idiomatic) To die.
...or the time the phone rang in the middle of the night and they knew before they answered that Auntie Jeanie had copped her whack.
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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.