mush (n.)youdaoicibaDictYouDict[mush 词源字典]
"kind of porridge," 1670s, in the American colonies, variant of mash (n.) "soft mixture." Meaning "anything soft and thick" is attested from 1824.[mush etymology, mush origin, 英语词源]
mush (interj.)youdaoicibaDictYouDict
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.)youdaoicibaDictYouDict
"to pound to a pulp," 1781, from mush (n.). Related: Mushed; mushing.