wet blanket
noun
Forms wet blankets wet blanketing wet blanketed
- noun (idiomatic, usually endearing, derogatory) A person who takes the fun out of a situation or activity, as by pessimism, demands, dullness, etc.
- noun (idiomatic, mildly derogatory) A timid person; one who lacks confidence; a wimp.
- noun Used other than figuratively or idiomatically: see wet, blanket.
Synonyms
buzzkill killjoy spoilsport addle-plot cold fish curmudgeon dampener downer fun sponge grinch grouch joy killer marplot miserabilist party-pooper sourpuss stick in the mud wet rag party pooper
Etymology
Suggesting that such a person would extinguish fun in the same manner a wet blanket can smother and extinguish a fire.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “wet blanket”, CC BY-SA 4.0. Details