One syllable words that rhyme with muck_up
bruck, buc, buck, chuck, cluck, druck, duc, duck, duk, fluck, fuck, gluck, guck, huck, hucke, kluck, kruck, kruk, kuc, kuck, kuk, luck, lucke, luk, mruk, muck, pluck, puck, ruck, schmuck, schuch, schuck, shuck, smuck, snuck, struck, stuck, stucke, suck, suk, truck, tuck, wnuk, wruck, yuck, yuk, zuck, zuk