Green’s Dictionary of Slang

(orig. US) excessively sweet, cloying, esp. in one’s behaviour.

1965		J.L. Herlihy Midnight Cowboy (1968) 133: I don’t want to go to no cutesy-ass party with no Hansel and Gretel MacAlbertson.
1990		J. Wambaugh Golden Orange (1991) 135: He puts in little cutesy stuff like dwarf statues and windmills.
1998		Source Oct. 120: If that cutesy little kid stuff makes you nauseous.
1999		Indep. Rev. 26 Aug. 15: A cutesy yarn.
1999		Indep. Mag. 11 Sept. 6: I was a cutesy kid.
2007		M. Rowson Stuff 31: I took an instant dislike to the vision of blond-haired, freckle-faced cutesy spunky childhood it peddled.
2021		J. Ellroy Widespread Panic 94: Every debutante do and cutesy cotillion.
2024		J. Meades Empty Wigs (t/s) 910: He looks like cutesy puppydog on birthday card. Begging.