The act of filling an empty box full of rocks, then placing it in a location likely to be seen by many drunken college students. This is because, to an inebriated man, it is nearly impossible to resist the urge to kick seemingly empty box as hard as humanly possible. The result is hilarious.
person 1: Why is that drunk dude holding his foot and yelling at a box?

person2: It's a Rock Box

Person1: oh
by Random Drunk Guy February 16, 2011
one of the best songs by Run DMC, a must download
I'm driving a caddy, u be fixin' a ford
by El_burro March 24, 2003
An orgasmic piece of open-source coding brilliance targeted at a variety of MP3 players. Will increase your sex life by 10000%
"Hey, is that rockbox on your ipod?"
"Why yes"
"Do you want a blowjob?"
by W33G33 March 24, 2010
When a womens ladyparts come face to face with medusa
You here what happened to Clarise?
Heard she got the rock box
by Dude Rugs February 14, 2014
The act of rolling up all the windows of your car to contain blaring rock n' roll music. Gets its name from the similar act of hotboxing your car to contain marijuana smoke.
Guy 1: Dude, pop in the Zeppelin CD.
Guy 2: Better rockbox the car to get the maximum effect.
(Both roll up their windows furiously)
by ColonelKetchup June 28, 2008

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