a stupid person a genius at math, but a total stupid when it came to his love life Synonyms airhead, birdbrain, blockhead, bonehead, bubblehead, chowderhead, chucklehead, clodpoll (or clodpole), clot [British], cluck, clunk, cretin, cuddy (or cuddie) [British dialect], deadhead, dim bulb [slang], dimwit, dip, dodo, dolt, donkey, doofus [slang], dope ...
A male mouse is called a buck. A female mouse is called a doe. A baby mouse is called a pinky, or a kitten. Mice are fond of hard bread. Mice are constant eaters-and will eat almost anything.
Probably a cad, however the reason the woman is called a mistress is because she usually ends up being halfway between a mister and a matress. The master. The mistress then fits between the master and the mattress. An a***hole.