When a friend of yours thinks a great idea to get married, though months into it realizes it is absolutely horrendous and awful, but he can't get out of it because there is a child on the way.

the thing that you don’t have when you’re phones percentage is over 20

A rushed marriage that crumbles to pieces after a couple of months. Derived from a "shotgun wedding" where the bride and groom are forced to marry due to an expectant child. In a reverse shotgun wedding, the couple is rushed amongst themselves and the whole thing blows up in their face.