A joke term used for a mentally handicapped or "retarded" person
Don't be a wet chin Johnny, you know 2 +2=4
by Suhmahdihh May 20, 2017
When a female rides the chin of Christian crop, or when crop gives oral sex with is chin.
Crop gave me that wet chin last night. He had the whole room wet.
by Crop girlfriend April 05, 2015