Describes tightening of one's anal sphincter muscle as a result of experiencing of experiencing something extremely awkward, uncomfortable or thrilling. It is used in the same way as the expression "to get a pit in one's stomach" where stomach muscles cramp due to undergoing the same set of feelings.
While relatively rare if the distress is too much both butt puckering and a pit in the stomach can occur at the same time.
His butt puckered because he realized that she might have find out he was sleeping with her sister.
Whenever I ride on the roller coaster or bungee jump my butt puckers.
35👍 1👎