noun, plural ( especially collectively ) hag·fish ( especially referring to two or more kinds or species ) hag·fish·es.
any eellike, marine cyclostome of the order Myxiniformes, having undeveloped eyes, a barbel-rimmed, circular mouth, and horny teeth for boring into the flesh of fishes to feed on their interior parts.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
a chattering or flighty, light-headed person.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Often shortened to: hag any eel-like marine cyclostome vertebrate of the family Myxinidae, having a round sucking mouth and feeding on the tissues of other animals and on dead organic material