Office code for quick sex with a new love interest.
Sex that didn't last long.
Coworker #1: So did you make coffee
Coworker #2: Yeah, but it was instant coffee :(
Coworker #1: I'm sorry :(
People that become friends so fast, they are compared to instant coffee.
bob: dudee r u friends with that new girl?
rob: dude were instant coffee friends!
bob: pretty sick man!!