mushrump noun2 •(no longer used) Mushroom, fungus.Bozzacchio, an acorne. Also a puffe or mushrump full of dust. — 1598 •[before a noun] (disapproving, no longer used) Upstart, a person who has quickly and undeservedly gained their position, power or wealth.So shall we haue the people of our side, / Which for his fathers sake leane to the king, / But cannot brooke a night growne mushrump, / Such a one as my Lord of Cornewall is […] — 1594 formsmushrumps
