A pompous ass who is so full of himself that he doesn't even realize he is insignificant and powerless
J: Our fearless leader was at happy hour again last night telling everyone on the team what to do, and drooling over every waitress in short orange shorts and big boobs.
T: He is such a shrimpy. He still doesn't realize that he is Big Al's bitch.
Adjective used to describe something small. It is mainly used to describe something to be small and cute, in adoration toward people you cherish, but it can also be derogatory, if used to describe others, who are not your friends.