The tendency for some project or operation to exceed its original boundaries and purpose, usually putting its participants into difficult or unforeseen circumstances. These may cause the original purpose to change, or to become unachievable.
The U.S. at first just tried to get the Viet Cong out of Vietnam, but after years of mission creep, they found themselves fighting the NVA, Cambodians, and others.
by Lt. Commander Data April 7, 2011
Get the mission creepmug. by UncleMawkus August 28, 2021
Get the side missionedmug. A very shitty old beater car that is disposable, unregistered and uninsured that one would use to conduct 'missions' in, such as egging someone's house or conducting paintball drivebys. Once said 'mission' is over, the mission car is to be driven into a lake and abandoned.
by Atomini December 2, 2010
Get the Mission carmug. by jbecky April 26, 2022
Get the duo missionsmug. the act of doing sometihing completely random for shits and giggles. And it has to be in the Ghettoist place in the city, town and/or villiage.
i lit a cat on fire and took a piss on it to extuingish the fire, it was me and carson's ghetto mission.
by milflicker69 June 29, 2010
Get the ghetto missionmug. When you do something you know you're not supposed to do (whether it's good or not so good) or when you do something that other people (like your parents) don't want you to do.
by avtor17 February 7, 2018
Get the Ninja Missionmug. During sexual intercourse, the female lies face down on the bed while the man repels by rope from the ceiling to hit it from behind.
Employee: "What's all that rope for?"
Guy: " I'm planning to Mission Impossible tonight."
Employee: *blankly stares*
Guy: *starts humming the Mission Impossible theme*
Guy: " I'm planning to Mission Impossible tonight."
Employee: *blankly stares*
Guy: *starts humming the Mission Impossible theme*
by Itschrian January 26, 2018
Get the Mission Impossiblemug.