Stands for tyler mother fuckin jones, captain of thizz. One gnarly motha fucka who eats his brotein every day, and pops his bro-hormone pillz at home. A tmfj enjoys phat bro chillz with his fellow bros. He will also thizz/toke/drank evry weekend or everyday, depending on how gnarly he is feeling. He's basicaly the man, on a whole different level then normal humans.
Wow, that kid is gnarly as shit, I mean look at his thizz face, it must be TMFJ.