Definitions by Dan Cicu

Thumb Bump 

1/11/17 Originated by Dan Cicu from Seattle, WA. Thumb Bump is similar to the "fist bump", with a clenched vertical fist instead, displaying the "thumbs up" in approval. 👍

Alright bro, good hanging, I gotta go.. *thumb bump*

Thumb Bump by Dan Cicu January 11, 2017