Milwaukee Grinder
A hand job given (or received) while wearing a work glove, leather or otherwise.
Today at work, I went behind the roach coach and got a MILWAUKEE GRINDER!
Milwaukee meat grinder
A sexual move in which a man's sexual partner turns his penis like a crank while he defecates. This process looks similar to the use of a hand-cranked meat grinder, hence the name.
I gave Jeff the ol' Milwaukee meat grinder last night!