bbbbbb bo-hoo bogoro booboo boohoo borbor borogo bororo borugh boubou bougou bourgh bourou brohug broogh brorup brough brubru bububu bugbug burbur burgoo burgor burhou burrup gob-up gobbur gogoro gohpur googoo gooroo gorgor gourou grough groupo grugru gruppo gubgub gurbru gurugu h-hour hogoro hohoho hoohoo hoopoo hooroo hop-up horgr hororo horror hubbub hububb huh-uh huoguo hurroo obourg ohohoh ohpooh oohooh oooooo oppurg orrho- orrour phobo- phoro- poboru pogoro poopoo pop-up popopo poporo poppop porrog poupou pppppp proph- propho propup propur purpur purugu rhogog robo-g roogoo rub-up rubro- ruhroh uh-huh uppoor upprop urhobo urughu uruppu