The "That's Fricken Sick"also known as #TFS is a hand gesture and saying used only by the sickest people. It is displayed easily, you do a thumbs up and throw it down into basically a Shaka or the "Hang Loose" sign, but with your thumb bent downwards at the knuckle. Accompanied by the phrase"That's Fricken... SICK!"
"Did you see Thad shotgun that beer?! That's fricken sick!"
OR
My dad said he loves me! That's fricken sick!
OR
My dad said he loves me! That's fricken sick!
by ThatsFrickenSick August 14, 2018