It is a single credit that you get before going out with your friends. It's used for one non-alcoholic escape beverage during the night. (for example a SunnyD or Tropicana) To prevent uncivilised actions, you later regret.
You can win SunnyD credits during the night by doing awesome things.
Martijn is so wasted, I should give him my SunnyD Credit or else he's going to hook up with some random 30+ grenade from the bar.
A man who dates women with the sole purpose of exploiting their time, energy, and labor while he sucks the joy and happiness from their lives.
"That guy's a soul digger. He'll expect you to work full time, but you'll be doing all the cooking, cleaning, laundry, shopping, and childcare while he plays video games or watches TV."
A person pretending to be something they aren't, or an impostor. This is inferred because of the old alien movies where alien pods appear on earth and the "pod people" dispose of the humans and slowly reproduce the bodies, pretending to be humans.
The pod person was pretending to be my father, but I knew that he was an alien when he acted differently than my father ever would have.