1 definition by paemt142606

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!"
by paemt142606 April 27, 2016
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