Here's what rhymes with halfoctagon.
gone con khan pecan upon don non von dawn lawn yon hon wan baton bon fawn han pawn schon yawn bonne octagon sawn sonne vpon begone faun john gnawn drawn undergone salon spawn swan yuan exon hexagon paragon brawn prawn tenon hereon tarragon lasagne thereon polygon foregone whereon echelon chiffon forgone aileron amazon antiphon epsilon predawn woebegone autobahn carillon heptagon neocon upsilon emoticon outdrawn thereupon whereupon lexicon automaton denouement pantheon positron marathon redrawn chaperon hereupon overdrawn pentagon mastodon cordovan trimaran methadon phenomenon withdrawn leprechaun frogspawn rapprochement pantechnicon Words that almost rhyme with halfoctagon
com calm gong long along wrong song bomb palm mom quam bom homme vom balm nom rom som tom dong mam thong pogrom pom pong tong bong qualm iamb becalm belong prolong throng intercom prom prong aplomb twang salaam sarong erelong strong embalm consomme mahjong firebomb dingdong supermom lifelong cardamom singsong yearlong nightlong livelong corn born borne torn worn barn horn warn scorn yarn adorn morn mourn thorn shorn darn porn tarn lorn sworn forlorn unborn peppercorn unworn reborn outworn waterborne careworn forborne timeworn lowborn sweetcorn firstborn stillborn unicorn forewarn lovelorn forsworn foresworn