When you are out to get straight fucked up. Slamming beers, taking shots, anything is game. You don't care what you do or where you're going but there better be alcohol involved and some serious good times. When your friends see the rate that you're consuming alcoholic beverages or that on purpose decided to skip dinner... they know you must be on a mission.
Did you see Captain Kerry last night? She was on a mission with that Captain Morgan!