1. A promiscuous young woman. If you think you guys are in an exclusive relationship, you better talk to her about it—I'm pretty sure she's a bed bunny.
2. A young woman who very much enjoys sex and/or engages in it frequently. Sure, I'm a bed bunny—sex is great, and everyone should do it more.
bed-bunny
1. n. a young female who will copulate with any male. Willy says he’s looking for a nice warm bed-bunny.
2. n. a female who enjoys sex immensely. Wanda turned out to be a hot bed-bunny even though she had seemed sort of dull.