Here's what rhymes with grundies.
undies Words that almost rhyme with grundies
unties munchies conchies scrunchies moneys monies buddies bunnies monthlies sundries phonies yuppies funnies honeys muddies tunnies bloodies sonnies luvvies countries studies puppies calumnies dummies gullies mummies neces buggies buttes gulleys guppies puttees druggies hussies putties sullies tummies chutneys sulkies budgies hubbies toughies duckies ebonies chicories chivvies wussies chivies gussies monkeys sunbeams unities scabies strophes junkies flunkeys flunkies jalousies trusties voluntaries restudies bimonthlies bemires symmetries psychologies boutonnieres geologies phantasies eternities impieties colostomies bloodstreams incarnadines thingummies semimonthlies understudies indelicacies