Here's what rhymes with umlungu.
new knew anew mu nu moo gnu to who you do two too due du u coup qu shoe zu canoe dew lieu renew shew su sue tu undue vous chew deux fu lu rue undo zoo adieu ado bu hu ju jus ku loo peu pu seu shu sou vu woo yew yu boo chou chu coo cou doo ewe feu gu mieux ru shou thu tue vou wou wu goo mew pooh poo shoo roux thew whew into through few true view blue drew grew que revenue crew threw blew flew q avenue clue cue glue hue queue accrue cu ensue flue retinue slew stew untrue brew flu pew thru fue hew shrew tzu vnto vue clew redo halloo valuer kazoo marabou slue phew regrew achoo review pursue residue screw bamboo rendezvous subdue taboo jusqu piu skew tattoo beaucoup eschew kangaroo outdo revue shampoo sinew sprue askew imbue strew honeydew spew endue zebu indue muumuu wazoo booboo debut caribou construe overdue outgrew overdo ballyhoo cockatoo bugaboo fondue foreknew peekaboo buckaroo overshoe prevue atishoo interview hitherto overview withdrew overthrew hullabaloo bestrew overflew overdrew overgrew barbecue misconstrue barbeque superglue