Top definition
A compound word to describe a nasty girl who you're hooking up with but never want your friends to know about. Stems from a trundle bed, which gets thrown underneath another bed because that's what you would do if you're friend caught you hooking up with her: throw her right under the bed so they don't see her.
by Dick Wong March 27, 2015
Get the mug
Get a Trundle Buddy mug for your mate Rihanna.