Definition from Wiktionary, the free dictionary
- (Discuss(+) this sense) While on a bed.
- Reading in bed and breakfasting in bed are two of my three favorite activities.
- (idiomatic) In terms of sexual prowess.
- She wasn't kind or smart, attractive or even funny. Her only redeeming feature was that she was fantastic in bed.
- (lying in bed): abed
lying on one's bed
in terms of sexual prowess