Definition from Wiktionary, the free dictionary
jellyroll (plural jellyrolls)
- (US) A cylindrical cake containing jelly (jam), often called a Swiss roll.
- (derogatory, slang) an overweight person.
- (by extension, US slang) The female genitalia, sexual intercourse, or a lover.
- a male hairstyle, common in the 1950s USA, a roll of greased hair longitudinally aligned front to back at the middle of the head
cylindrical cake — see Swiss roll