Dictionary
Words, grammatical forms and meanings linked to the ontology.
in the sack en · ADP
Pronunciation
Meanings
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(idiomatic, slang) In bed (either literally or figuratively), especially with reference to sexual intercourse.
I'm pooped—I'll be in the sack if anyone needs me.
Her girlfriend was amazing in the sack.
I'm sorry for all those things I said to you last night. You're not the worst fuck I ever had. Believe me, I've had worse. You don't puff or snorkel and make death-like rattles. As a matter of fact, you're rather serene in the sack.
1976, Paddy Chayefsky, Network, spoken by Diana Christensen (Faye Dunaway):Men I've spoken to since have tended to be delighted rather than shocked, but this is more scary than reassuring. If they assume I'm going to be a real bundle of fun in the sack, leaping into bed on a first date and whipping out the handcuffs, they're going to be terribly disappointed.
2012 April 12, Victoria Coren, “I made a porn film for my 30th”, in Evening Standard, London:
Synonyms
between the sheets · in bed