mama's boy

noun

1. a boy or man showing excessive attachment to or dependence on his mother.

Word History and Origins

Origin of mama's boy¹

First recorded in 1840–50

Idioms and Phrases

A sissy, especially a boy or man excessively attached to his mother. For example, The children called Tom a mama's boy because he ran home with every little problem. This sexist expression has survived despite its pejorative tone. [Colloquial; mid-1800s]