A bag of treats given to one competing in an athletic event. (It's a -sack- that's supposed to -psych- you up.) Psych sacks are typically prepared by the team captain, or whoever's feeling generous/remembers to do it.
grab your psych sack & get on the swim bus ladiiiiiieeeees
by rinsten December 18, 2011
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A member of the fandom of the tv show psych, which is unfortunately small.

Knows at least 20 Gus nicknames and endings of the phrase "Gus, don't be a..."

Usually ships either Shules, Shassie, Carlowe, or all three.
Psych-o: And then Lassie said-
Friend: Lassie? Like the dog?
Psych-o: you idiot.
by that_psycho August 10, 2013
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When two butch looking women are seen popping pills outside a Mental Health Clinic.
Were those two women questionable just talking to that mail box? They oughta be "Dykes on Psychs".
by knotnice September 8, 2010
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(slang) To say something and not mean it or mean the opposite. (see sike) Messing with someone's mind. Derived from the psychological term "psyche" which is defined as 1) The mind; 2) The spirit or soul; 3) the mind as the center of thought, emotion, and behavior. (wikipedia)
(on the beach) "Dude, look at that smooth hot guy over there with the swimmer's build!"
('victim' turns to find a really unattractive man)
"PSYCH!"
by Shawn Collins24 January 3, 2008
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This is the action of liking something on facebook and then immediately unliking it so that the person gets a notification that you liked their post, but when they check, they realize that you haven't
I saw that you psych liked my post. War has now been declared.
by Soi Soi September 19, 2010
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(n)a phrase or sentence used to convey an emotion, intention, feeling, or thought different from one being shown.
"I like you alot. Psyche Out!"
"I'm sick of sex. Psyche Out!"
by Deuce May 8, 2005
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About 2 hours before the opening night of a stage performance where the cast eats dinner together before getting ready. There’s usually a lot of stress eating and singing. Maybe some going over lines
“Dude, I’m gonna way so much at psych dinner.”
by Theatre gal May 5, 2019
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