Verb. To drink a caffeinated beverage before partaking of a more highly caffeinated beverage. Derived from the word "pregame," this act is often avoided due to its cheapening of the second caffeine buzz.
You: Hey, you wanna go grab some coffee?
Me: Alright, but I'm getting decaf.
You: What are you, some sort of pansy bitch?
Me: Naw dude, I'm drinking Monster later and I don't wanna precaf.