Top definition
A particularly large, manly, or muscular woman; who, in a sexual encounter, would likely rock your world to the point of causing you bodily harm.
Did you see the chick with the motorcycle that Frank got with? She was a real pelvis grinder, probably broke his junk right off.
by Jdub45 June 12, 2015
Get the mug
Get a Pelvis Grinder mug for your dad Bob.