When someone is scared about something
Boy-'I am so stressed about this test!'

Girl-'Sheeing it?'
by 7u6yjhgredf November 29, 2011
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The basic implications of this word is ment for...
(1) Telling someone that whatever they're trying to talk about is something you just don't give any shits about.
(2) Quite frankly just telling someone to be quiet, shut up, or change the topic of the current conversation.
(1) Guy#1: "OMG My Little pony is so epic!" Guy#2: "SHEE-SHEE-SHEE!"
(2) Girl: (in back of lecture room/class) "so like i went out on a date with this guy right... and i was like..." Guy: "SHEE-SHEE-SHEE!"
by DrPepperMunster May 10, 2012
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Means "shit". Used when something of misfortune occurs. Usually said in a high pitched voice with emphasis on the "ee". Could also be said quickly in a gruntal voice with emphasis on the "it".
Mr. ATC: So did you do your presentation zood?
Tones: Urgh, What! That's do today? Aw SHEEEEE-IT!
Alien: Shee-IT!
by nadjask March 31, 2009
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Shee or Fairies and their Dwellings.—The pagan Irish worshipped the side shee
i.e. the earth-gods, or fairies, shee, or elves. These side are closely mixed up with the mythical race called Dedannans, to whom the great majority of the fairy gods belonged.
by ARMD December 28, 2011
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It simply means "Shit." It's used to describe surprise and/or opposition towards a comment and/or situation. Usually in a major way.
WOMAN: I need a huge favor.
MAN: What?
WOMAN: Will you pay my rent and bills? I'll give you something to make it worth your while.
MAN: Shee-It!!!!!!!! Your hand cares about my money more than you care about me.
by Mr. Terrence L. Trezvant October 16, 2006
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a subsitute word for shit
I've got to take a shee.
by sookboywonder February 26, 2004
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Short for the vehicle Banshee in the game Halo.
That n00b in the shee is a cheap ass!
by Kannon April 12, 2005
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