Here's what rhymes with mnpo.
o au oh owe aux bo doe dough po toe tow beau eau jo ow beaux cho dau eux oe doh no so know go though low show co blow pro row tho fo foe ho lo mo ro wo woe yo bio ceux faut goe hoe ko sew soe vo mow noe roe sho tuo yeux zo bro rho stow trow whoa below ago flow grow slow snow throw glow quo audio fro chateau crow thro nouveau uno dicho floe topos chateaux dunno throe chapeau kapok sloe tarot turbot bandeau gateau kayo matzoh chapeaux gateaux pekoe borzoi schmo schmoe although radio embryo plateau undergo bestow hello indigo patio polio propos tableau aglow cameo medico outgrow rodeo tableaux plateaux trousseau oleo undertow deathblow fatso trousseaux romeo resew ratio studio buffalo folio stereo dynamo forego forgo vertigo aliquot apropos domino escrow mistletoe siglo spatio adagio piccolo foreknow regrow pompano microdot tallyho overthrow overflow portico bungalow calico afterglow overgrow mustachio moustachio politico presidio oregano pistachio portfolio impresario pianissimo archipelago braggadocio generalissimo