bbbbbbb bibbing bigging bigmitt bigunit bimbini bimiini binging binning bintuni bitting bittium bubbing bugging buiting bumming bunging bunning bunting butibum butning butt-in butting buzzing gibbing gibbium gibibit gigging ginging ginning gitting gitumbi gizzing gubmint gugging guiguzi guimini gum-gum gumming gunging gunning guntin gutting igiugig imbuing iminium inguin- inibbit initing initium intimin mbuguni mbuzini mignini mimbung minging minigui minigun minimig minimin minimum minmini minning minting mittimi mitting mugging mumming munging munting mununzi muu-muu muzungu mzimuni nginiig ngutuni nib-nib nibbing nigging nimbuzz nimming nitting nubbing nubuntu num-num numbing numming nun-gig nunguni nunning nunting nutting nuzzing nzuguni tibbitt tibitin tigging tim-tim timgunn timzinn tinging tinning tinting tit-bit titting tizimin tubbing tugging tuining tum-tum tumming tunning tut-tut tutting tututni tutzing tzitzit unguium uniting utimuni zig-zig zigging zimming zinging zingium zizzing