Definitions by vnbvcncvnhcnhgcnhcv

slip of the thumb 

When a person accidently swears using sign language.

"Dude, yesterday i spoke with someone deaf using sign language. And apparently I accidentaly insulted him, what a slip of the thumb."

slip of the thumb by vnbvcncvnhcnhgcnhcv March 11, 2015