Here's what rhymes with kookier.
spookier Words that almost rhyme with kookier
goofier oozier nuclear gloomier sunnier roomier moodier groovier loonier loopier newsier rubier boozier woozier scuzzier fumier droopier plumier broodier schoolteacher nonnuclear unrulier proofreader mononuclear thermonuclear antinuclear