Top Definition
The act of squatting on a penis in the same fashion an individual works his quads/hamstrings at the gym by squatting.
"Damn that's a bad bitch, I bet she diesel squats like a BOSS!"

"How was Sarah last night?" "She was alright dude, she needs work on her diesel squat technique."
by |xXdieselsquatboss_69Xx| November 12, 2011
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