Seal of Approval
This occurs when a man is either jacking off or being jacked off and the hand that does the deed happens to be sporting a 'thumbs up'.
Example:
Billy- Bob: Oooh, Jabrina, that feels amazing!
Jabrina: So it should, I'm giving this meat pole my own seal of approval!
Billy- Bob: Oooh, Jabrina, that feels amazing!
Jabrina: So it should, I'm giving this meat pole my own seal of approval!