look up any word, like the eiffel tower:
the sex act, copulation
They only ever thought about who was doing the horizontal bop with who.
by The Return of Light Joker August 05, 2009
To have sex. see HORIZONTAL MAMBO
Once, I was listening to a friend's horizontal bop... it made me laugh so hard I crapped my pants.
by I like chocolate milk. August 15, 2005