When you see an old, white baldy pushing a shopping cart behind his young Thai wife who's shopping in the nearest asian supermarket because she won't eat American food.
Look at that sad, old farang-trailer with his little trophy wife.
A modern male who just can't seem to get his lazy ass off his mother's couch, quit playing with his playstation or his pecker, and go face reality and get a job then move out and find his own place. If his age reaches 40 before he gets that job then he becomes a "Menfant Savante".
Me, and most of my Menfant buds in Oklahoma.