Using your mom (or the mom of a friend) as your "wingman" to pick up a girl at the bar. It works because you seem nice for taking a mom out to show her a nice time and your intentions could be nothing but good.
Joe: Hey did you bring a girl home last night I thought you were hanging out with your friend's mom while she was in town?
Phillip: Yeah, we went to a bar downtown and she was a fantastic wing-mom. The girl I was talking to thought it was sweet that I was showing my friend's mom around town.