isosy 

I should of swallowed you.

son: hey mom what does “isosy” mean?
mom: I should have swallowed you.
son: damn...i was just asking.

isosy by Silvy May 9, 2020

Isoscuse 

An excuse able to be executed as the result of The Virus.

I couldn’t buy a present because, you know, pandemic = Isoscuse
Sorry I can’t return your <insert borrowed item> because I can’t leave the house = Isoscuse.
I can’t take the dog for a walk because I can’t find a face mask to fit him = Isoscuse

Isoscuse by El Asto April 8, 2020

Isosceles Lock 

69 performed with three participants rather than two.

via Achewood: May 5, 2004

In a three-way, nobody sits around bored if you employ the Isosceles Lock.

Isosceles Lock by Gimpson May 3, 2004

Isosceles 

Popular UK YOUTUBER and part time shape and beta squad member isosceles (Aj shabeel) rumour has it he loves watching mr maker on CBeebies with kingkennytv

Some random waffler:Oi fam it's isosceles Whats the Pythagoras theorem

Niko: the schmuck who knows it lives in waffle town his name is camera man George

Niko

Isosceles by The waffler NDL 69 January 1, 2020

Issy 

Lovely girl with lots of friends. Usually small, cute and innocent but will happily kick someone in the balls if they tell her that. Everyone loves her, no one ever hates an Issy. Although she has lots of friends, she will always have a best friend who she loves and will stay loyal too. All the guys love her because she is so cute and funny. Usually a beautiful brunette with green or blue eyes and often a great body!
Will have a great time and parties and everyone want to be like her.

Guy1: That girl is soo cute! I want her!
Guy2: Seriously dude, dont say that to her face.

Guy1: There was this insanely pretty girl at the party, all the guys loved her!
Guy2: Sounds like an Issy :)

Issy by barbie007 July 10, 2011

Issy 

A beautiful girl with an amazing smile usually small but doesnt like people telling her that

Happy and always smiling can be a bit freaky/wierd at times

Guy 1 :Whoah she is soooo pretty
Guy 2 :thats myissy

Issy by William paul turner November 11, 2018

Issy Bird 

Issy Bird is a vagina. A silly word used by teenagers.

Liz: Omg did you see Dezarys issy bird hanging out of her skirt today.
Marlee: Eww yes.

Issy Bird by Ballball3131 September 30, 2015