Mul"let (?), n. [OE. molet, mulet, F. mulet, fr. L. mullus.] 1. (Zoöl.) Any one of numerous fishes of the genus Mugil; -- called also gray mullets. They are found on the coasts of both continents, and are highly esteemed as food. Among the most valuable species are Mugil capito of Europe, and M. cephalus which occurs both on the European and American coasts.

2. (Zoöl.) Any species of the genus Mullus, or family Mullidæ; called also red mullet, and surmullet, esp. the plain surmullet (Mullus barbatus), and the striped surmullet (M. surmulletus) of Southern Europe. The former is the mullet of the Romans. It is noted for the brilliancy of its colors. See Surmullet.

Mul"let, n. [F. molette.] (Her.) A star, usually five pointed and pierced; -- when used as a difference it indicates the third son.

Mul"let, n. [Cf. F. molet a sort of pinchers.] Small pinchers for curling the hair. [Obs.] B. Jonson.

• A fish of Genus Mugil.
  
• (plural: mullets) A hairstyle where the hair is kept short in front and long in the back.
  
• (slang): A person who mindlessly follows a fad, a trend, or a leader (similar to the older slang term "lemming"). The phrase "stunned mullet" expresses the absence of vivacity and discernment of such a person. The allusion here is most likely to the mullet, a nearshore schooling fish with rather large, blank-staring eyes; the term may also have gained some currency with the popularization of the term mullet for a particular type of haircut claimed to be favored by the undiscerning and uneducated.