bloop bluff bo-bo bobup boffo bogof bogu boll- bollo bollu boul- boulo buffo bugol bugoo bulb- bull- bulou bulul flogo floop fluff fluo- fogbo foggo fogou fogup follo fougo fu-fu fugug fullf fullo fulop fulup g-log ggulu globo gloff glogg gloop gloup glubb gluff go-go go-lo go-oo go-op gobbo gofup gogol gogul golbo golfg golfo gollu golob golog golol golop golub golug goobo gooff goplo goulf goulp gubbo gugul gulo- gulou gupol l-pop lobbo lobo- lofou logo- logol lollo lolol loobu lopou lugol lulul luogu lupul oblog obolo offof ofpop ogogo ogugu ollup ooooo oploo opobo oppol oullo pflug plogg ploop plopp plopu pluff plugg plupp po-po polbo pollo pollu polog polop poopo popop poppo popup pouff poulp pubo- pull- pullu puppo u-pop ubobo ufofu ugoff uloop ululu upoff upolo upolu uuuuu