n. Properly, the larva of a fly or other insect: hence, in general, a grub; a worm: applied to footless larvæ, and especially to the larvæ of flies.n. A whim; a crotchet; an odd fancy: mostly in such expressions as a maggot in one's head.n. A frisky fellow; one given to pranks.n. A whimsical impromptu melody or song.n. (See also cheese-maggot, meat-maggot.)