It's when someone comes up in front of you and proceeds to give you a hug, but then reaches around and pulls (or rather inserts) a fast one by inserting their thumb into your asshole.
I gave Mary the old fashioned thumb around at Walmart the other night. You should have seen her face!
by Steamer Bean March 23, 2018
The act of giving someone two armed hug and suddenly putting each of your thumbs in their asshole simultaneously. This is an updated version of the Old Fashioned Thumb Around.
Excited to see his high school friend, Jerry ran over to Cindy at the Baskin Robbins and gave her a new fashioned thumb around.
by Jumbo Jackson November 9, 2019
by ryan bambi November 29, 2010