Being under the influence of a depressant (IE Alcohol) and needing to quickly pick yourself via a stimulant (IE Cocaine) up for a particular reason.
John: I'm still fucked up from last night and have a job interview in 30 minutes, man.
Matt: Don't worry, dude, I have cocaine, the banana boat is coming.
Where one person eats a bunch of bananas and chases it with ex-lax. Then you dress as a monkey then proceed to take a massive fountain-like dump on your partners back.