Wiktionary
alt. A male who has a very close bond with his mother, often perceived as soft or effeminate. n. A male who has a very close bond with his mother, often perceived as soft or effeminate.
Usage examples of "momma's boy".
It is almost more than an angry thirteen-year-old little Jewish Momma's Boy can bear.
There had been a chaplain in the Home Guard a bit like Father Clifton -- earnest, mostly inoffensive, a bit of a momma's boy who may have gone into the priesthood so that he would never have to grow up and become really responsible for himself.
And if she did try to intervene on his behalf, then the cowboys would probably start calling him a 'momma's boy'.
I'm all alone and I'm stuck with this geek with a leg brace, this strange, sickly momma's boy, who can't run, who's got this drippy nose and this weird hair, who spent a summer in an iron lung, which made him as frightening to me as the Mummy.