Top definition
youtube bro science worth watching for workout reference, despite jealous haterz on other channels.
dude 1: yo, are we making all kindz of muscle gains?
dude 2: nah, we gotta watch more twin muscle workout biatch!
dude 1: yeah, then we'll hit that gym...
dude 2: we do what the fuck we wanna do!
by RikkRokk September 23, 2013
Get the mug
Get a twin muscle workout mug for your Facebook friend Callisto.