Wiktionary
live-in boyfriend
alt. a boyfriend living together with his girlfriend under the same roof. n. a boyfriend living together with his girlfriend under the same roof.
Usage examples of "live-in boyfriend".
Marci's current live-in boyfriend was a guy named Brick, a big, muscle-bound oaf whom none of the other three liked.
The woman's got a live-in boyfriend, in this case, as everyone seemed to know, an ex-con.
In the past her useless live-in boyfriend, Tony, had guarded her, but to the great relief of the Donovans, Faith recently had rubbed the fairy dust out of her eyes and dumped him.
They'd remained good friends even after Rickie introduced her to his live-in boyfriend.
Her live-in boyfriend's truck was in the impoundment lot, the fourth time in as many months.