a team of retarded girls. or a state of mental being.
Wow, i can't believe you did that, you're so dumb.

I know, i'm so isis right now.
by carlanda April 2, 2008
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bunch of pussy ass mother fuckers that thinks they can take out the greatest country of all time..... so they can hail hydra in hell mother fuckers
by Reverse Flash November 12, 2015
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stands for "It's Senior Year". ISY can be used interchangeably with "YOLO"; it is used to justify otherwise questionable behavior during the final year of high school or college.
Tony- "I hooked up with another freshman last night. Is that bad?"
Joe- "Not at all man, ISY."
by killemandgrillem69 February 19, 2014
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describes a large gathering of men who are sexually attracted to pigs and other swine
"I am new in paris but i am worried about isis", "don't worry those pig fukkers , they are to busy buggering swine to worry about your visit, priorities you know!"
by deanochips November 19, 2015
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Sandniggers that blow up people and fuck goats
Alluah Akbar- Common isis chant
by reker May 1, 2016
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