Junior Programmer: What's Scrum. I didn't learn that in college. 

Senior Programmer: Oh, that's nothing. It's just slang we use around here for when you throw up a little in your mouth and have to swallow it back down.

Junior Programmer: (puzzled look on face)

[Later in Scrum planning meeting]

Scrum Master: Everyone have your poker cards ready? How many points should this story be? Pick the right card, and on the count of three, hold it up. One, Two, ..

Junior Programmer: (looks nauseous) 

Senior Programmer: (whispers to junior programmer) Dude, you ok? You look like you're going to Scrum.