epopee euippe euphue heehee hehehe hehheh heopop hey-ho heyhoe heyyou hiphei hiphop hipihi hipipo hippie hippo- hohoho hoohoo hoopee hoopoe hoopoo hop-up huh-uh hypeup hypho- hypopi iheyou iiooio ohohoh ohpooh oohooh oooooo oophoi ophio- ouioui oupeye oupoyo peepee pei-ho phiphe phooey phyhip piopio pioppi pipeup pipipi pippip piupiu poipoi poopie poopoo pop-up popeye popopo popoyo poppop poupee poupou pouppe pppppp pu-hoe puppey uh-huh yee-ho yehyeh yeo-ho yippee yippie yo-pop yohoho yoohoo yoyoyo yueyue yuppie