1 definition by Gainz4Life
A specific strategy for gaining mass in which one lifts weights regularly and consumes any and all types of food, specifically junk food.
Dude, did you just eat that entire cake?! I thought you were trying to get in shape?
It's OK bro, I'm doing a dirty bulk. Don't hate.
It's OK bro, I'm doing a dirty bulk. Don't hate.
by Gainz4Life April 30, 2016