Definition of marshmallowy in English:

marshmallowy

adjective

  • Resembling a marshmallow, especially in sweetness or softness of texture; (frequently figurative) cloying, sentimental.

Origin

Early 20th century; earliest use found in The Smart Set: a magazine of cleverness. From marshmallow [adjective] + -y.

Pronunciation

marshmallowy

/ˌmɑːʃˈmaləʊi/