it means, "just kidding." many spell it incorrectly as "psych" or "psyche" but if you were alive in the 70s you know it is spelled "sike."
Sure I'll sleep with you, Aaron. Sike!
by wwew June 10, 2009
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(interjection) meaning "false!" or "just kidding!" Also see sie. Antonyms: See forsooth or sooth
Yo' mamma look like dumbo on speed, sike!
by Emilave January 15, 2003
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I think the correct spelling for this is

PSYCH! referring to psychology....
by adrien coblentz March 5, 2005
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Slang term for "psych" or "psyched out" meaning to have given an insult, usually delivered in a beleivable fashion.
by (r33py September 25, 2003
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To say something seriously but mean it sarcastically. From the root word "psyche" but is spelled differently.
Dave is a registered independent... Sike! He's really a republican.
by Ittakesavillage September 29, 2005
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a roast. something where you gotta say, ohhhhhh! such as . . .
aight, so here is my ex's numba. SIKE !!! dats da wong numba!
by planekid January 9, 2018
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Referring to production of fake/counterfeit nike shoes and other apparel.
Man those are some dope shoes, too bad there sike's.
by Phresh&Clean May 31, 2009
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