dododou doo-doo dossous doyoudo dum-dum dumdums dummyup h-m-d hohohos homopus hoo-hoo hoodoos hoopoos hoummos houmous housops hoy-hou hummums hyduous hypopus hyssops moo-moo moshood mouhous muddyup muu-muu muumuus myhumps oomphph opossum opposum osoyoos osphyo- osymyso phosph- pom-pom pompoms pomposo pompous poo-poo poopoos pop-ups popodom popshop possodo possody possums poupous psophus psyopus pum-pum push-up pushups pussums shoho shoyhoy shuddup shumshu shushud smooshy sohyo somphou sou-sou soudoud soumpou soupsup spumous spy-hop sssssss sysomos up-push uphusum ymummyd yoo-hoo yoohoos youssou yum-yum