I. ˈməsh, especially 3 also ˈmu̇sh noun
Etymology: probably alteration of mash
Date: 1671
1. : a thick porridge made with cornmeal boiled in water or milk
2. : something soft and spongy or shapeless
3.
a. : weak sentimentality : drivel
b. : mawkish amorousness
II. verb
Date: circa 1781
transitive verb
chiefly dialect : to reduce to a crumbly mass
intransitive verb
of an airplane : to fly in a partly or nearly stalled condition
• mush·er noun
III. intransitive verb
Etymology: probably from French marchons, 1st plural imperative of marcher to move, march, from Middle French marchier — more at march
Date: 1897
: to travel especially over snow with a sled drawn by dogs — often used as a command to a dog team
• mush·er noun
IV. noun
Date: 1902
: a trip especially across snow with a dog team