- mush (n.)
- "kind of porridge," 1670s, in the American colonies, variant of mash (n.) "soft mixture." Meaning "anything soft and thick" is attested from 1824.
- mush (interj.)
- command to sled dogs, first recorded 1862, as mouche, perhaps altered from French marchons! "advance!" (imperative of marcher "to march;" see march (v.)).
- mush (v.)
- "to pound to a pulp," 1781, from mush (n.). Related: Mushed; mushing.