hhhhh hi-hi hiisi himsi himss hipp- hippi hipps hippy hishu hisis hisiu hissi hisss hissy hsimi huhuh huhus huish humph humps humpy humus huppy hushi hushy hussy husum hyphy hyps- i-spy ihsim iiiii iisys imhip imiss imphy impis imshi iphis ipsi- ipsum ipsus ipums is-is ishii ishim ishis ishum isisi ismus ispim ispup isshi issum issus issuu isumi isuus isyss iupps iyiyi mi-mi mimis mimmi mimms mimpi mimsy mimus mipim mipus mishi mismi missi missm missy misys mmhmm mmiii mmmmm mmpip mpisi ms-ii msisi muish mummu mummy mumps mumpy mumsy muppu mushi mushu mushy musis mussy my-my mysis mysms mysus phimu phiph phish phusy phys- physi physy piisi piisu pimms pimps pimpy pipis pippi pippy pishu pissi pissy pisum piusi pmpus ppsmi psy-s puhmu pumis pummy pumps puppy pupsy push- pushy pussy pympi s-iii shhhh shimi shims shipp ships shish shism shmup shu-i shuis shush shuyu sihui simis simmi simms simps simpy simum simus sippi sippy sipsi sisis sismi sissi sissu sissy siumu siusi siuyu siyum smihs smish smush smuss spims spiss spumy ssmis ssssh sssss su-mi suhum summi sumph sumps sumpy sumui sumup supps supsi sushi sussy susus sympy uh-uh uhhuh uhuhs uispp umhum umphs upshi uship ushis ushus uspis usspy ususi uuism uusis uuuuu uyshu yimyu yippy yiush yummy yuppy yushi yushu