Top definition
When a man puts his testicles in someone else's anus and proceeds to masturbate. The action resembles a golf ball washer.

If you attempt a Detroit Ball Washer please remember to insert your testicles in series not in parallel.
My balls are still sticky from that Detroit Ball Washer...
via giphy
by thebeardedgreek August 06, 2017
Get the mug
Get a Detroit Ball Washer mug for your mother-in-law Julia.
Sep 8 Word of the Day
A casual invitation / threat used by an individual that is not afraid of fucking someone up.
PAUL: I'm going to beat your ass.

JACK: Fuck around and find out, fool!
by NX STARCHILD October 16, 2020
Get the mug
Get a Fuck Around And Find Out mug for your barber Helena.