What is Underground Boombox?
1.
the act of beatboxing into a woman's vagina during cunnilingus in order to give her pleasure some rhythm.
I gave her an underground boombox when i went down on her so that even if I wasn't that good, she could at least enjoy a catchy beat.
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1.
A supporter of Barack Obama who is either a god damn republican, an independent or a glorius democrat. They are neither red nor blue, bl..