ISY

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

ISIS

A bunch of really friendly dudes!

Ahmed: "I love ISIS!"

by RBLXStealer June 10, 2019

ISIS

A random group of pin pushers.

Hey, is that an ISIS

by kjsdfrisue March 07, 2017

isis

To go crazy and or/do something fucked up while disregarding any sort of morality for a short stint of time.

''You should have been at that brothel last night dude. Dave went isis on three hookers..'' ''What did he do?!'' ''He started shouting Allahu Akbar and then dived through a window with two hookers under his arms''

by finnn June 05, 2015

isis fish

A fish obtained and then beheaded like a journalist in Mosul.

You ever catch an ISIS fish?

by Dadbagh October 12, 2017

ISIS

Fake Muslims wannabes, also known as just complete dip-shits.

OMG hes muslim so he must be a part of ISIS even though Islam means peace but i'm to arrogant to realise that.

by Al Jordeno December 06, 2015

FUCK ISIS

FUCK THOSE DUMB JIHADS PIECE OF SHITS, THEY CAN GO FUCK THEMSELVES AND THEIR GOATS.

FUCK ISIS, those dumb pricks in Iraq, and Syria controlling bastards.

by THE OG OG MUDBONE December 09, 2015