This textual acronym can either mean "fuck you/yourself" or "fuck yeah."
Example 1 (fuck you): FY YOU STUPID ASSHOLE.
Example 2 (fuck yeah): FY! SCHOOL IS FINALLY OVER!
by fhk x3 January 1, 2017
"FY" is the abbreviation word for "For you ;)". It is used to show an unconditional and sincere appreciation for what someone just said to you by returning the same compliment. It always follows the word "Thank you for you".
Fun fact: "FY" is used a lot in Azerbaijan.
Pascal received presents from both of his friends during Christmas
Pascal: Oh wow, Christmas presents, thank you for you!
Julien: No, no, no, no, NO. Thank YOU for YOU.
Will: FY.
by Kazgrum December 21, 2016
Lars: Did you eat the cake?
Bente: Yea! I did!
Lars: And you didn’t fucking share?! Fy fy!
by Nah no name needed November 10, 2018
Zoe: Did you see his shoes?
Charlie: Yes! They are fy fy
by StirFryAndTheRamenNoodles August 26, 2018
Fuck Yo Shit
If it's not your job than you say FYS
girl: can i borrow your car very fast?? just need to go down the block pick up the groceries.
guy: FYS
girl2: can you watch my little cousin just for a minute?
guy2: FYS
by pbsyp October 9, 2007