(intransitive) To slouch or droop.
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(intransitive) To decline or fall off in activity or performance.
Real estate prices slumped during the recession.
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(intransitive) To collapse heavily or helplessly.
Exhausted, he slumped down onto the sofa.
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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.