Muss, v. t. [imp. & p. p. Mussed (?); p. pr. & vb. n. Mussing.] To disarrange, as clothing; to rumple. [Colloq. U.S.]

Muss (?), n. [Cf. OF. mousche a fly, also, the play called muss, fr. L. musca a fly.] A scramble, as when small objects are thrown down, to be taken by those who can seize them; a confused struggle. Shak.

Muss, n. A state of confusion or disorder; -- prob. variant of mess, but influenced by muss, a scramble. [Colloq. U.S.]

Muss, n. [Cf. OE. mus a mouse. See Mouse.] A term of endearment. [Obs.] See Mouse. B. Jonson.