1 definition by Wisemandownwithharrybush69
When some doosh (usually named Blake) jacks a beat (electronic focused dance music) that has been discovered by you.
"Dude Blake just played me the dopest beat, its a Designer Drugs remix of Countdown" Blake jacked this beat from you making him a beat jacker.
by Wisemandownwithharrybush69 January 25, 2010