Step Boyfriend

A man who dates a woman that has children by another man. The man is the boyfriend to the mother of the children and thus a Step Boyfriend to the children.

The children left their Dad's house to go visit their Mom and Step Boyfriend for the weekend.

by Glitterfly78 December 3, 2009

Step Boyfriend

A guy that isn't your boyfriend but talks to you like a boyfriend would.

"Me and Tristan have been talking, but we aren't official"

"So he's like a step boyfriend?"

by Astral21 April 22, 2021