mush [mʌʃ], v.[entry#2] dial. Also 9 mosh.
Etymology: Onomatopœic alteration of mash v., suggestive of duller sound made in pounding something soft. Cf. the earlier mush sb.[entry#1]
trans. and intr. ‘To crush, pulverize, crumble; to mash, to reduce to pulp; to crumble or decay away’ (E.D.D.).
1781 Hutton Tour to Caves (ed. 2) 93 - Mush, to crush, or crumble.
1848 A. B. Evans Leicestershire Words 58, - I thought that she would have moshed her children then and there.
1855 Robinson Whitby Gloss., - To Mush, to crumble, to moulder.