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Short for "Thank You For Your Service"
A phrase used when addressing a volunteer fireman/EMT usually by a paid firefighter or medic.
Usually snarky, judgmental, and sarcastic in nature.
Look at that guy with the Mainville Volunteer Fire Department "dragon slayer" shirt on. *walks up* "TYFYS - THANK YOU FOR YOUR SERVICE!"
tyfys by paemt142606 May 27, 2016
Related Words
The acronym for 'Thank You For Your Service.' Usually used ironically to express that you did not actually want the service in question. It's also a polite way to say "go fuck yourself you jackbooted thug."
Cop: "I'm citing you for a seatbelt violation. It's a $200 fine but it's for your own good."
Citizen: "TYFYS"
tyfys by WWWJWD May 15, 2016
Short for "Thank you for your service" Usually said to hobbyist volunteer firemen that hit it hard from the yard.
Generally a sarcastic response, synonymous with "go fuck yourself"
volly: "i'm a volunteer firefighter but i do the same job as you"
paid guy: "tyfys"
tyfys by Ty54 August 21, 2016

tykaysha 

Tykaysha is somebody loyal has a good heart love he boyfriend no matter what down wit whatever don't care type in a savage she thick and flexible in can dance
Tykaysha is loyal.
tykaysha by Savagediva November 6, 2017
Such a pretty girl , can be very mean , don’t like people’s kids
Tylaysa is mean
tylaysa by Tylaysa November 11, 2019
Acronym for 'Thank You For Your Service'
"Go give that guy the old TYFYS".
tyfys by MantisShrimp July 25, 2016