What is Muscle Fuck?
1.
1.To tighten the top of a can bottle or screw something so tightly the grooves are stripped and insuring noone else is able to open said item. this action implies sexual frustration.
you: Ay man fuck are you doing?
your friend: trying to open this bottle of soda
You: why your eyes gotta bug out like that
your friend: Man somebody muscle fucked the shit outa this.
See
