Music that you hear while on the bus that comes from other peoples loud headphones. they supply the music to people who don't have their music cranked.
I didn't have my ipod today so I just listened to the Bus Beats from the guy sitting across from me.
by Oderus Underus April 11, 2011
A green minivan with respect worldwide. It is the fastest minivan on our planet with dual sidepipes and two Alpine type R 12"s
bill- "dude i saw the beat bus today"
todd- "fuck man that thing is wild"
bill- "yeah i know, it beat my buddies WRX"
todd- "fuck man that thing is wild"
bill- "yeah i know, it beat my buddies WRX"
by SJGFTBB November 20, 2009