To fart in ones hand and then slap someone else directly in the face. The object of a Dirty Tyler is to do it quick enough so the slapped person can smell and taste it.
When you are get a blow job in the dressing room at the mall while trying on shirts. When you find one you want you cum in her mouth and she spits your load on the dressing room mirror.
When you get into a fight with someone and the person you fought starts to set you on fire, realises that that’s probably not the best idea. So they train a pony to bite of you wiener.
The guy that hasn't showered in a long time and just recently had sex with some person and still thinks it's a good idea to go down on him... Smelly , fuzzy and crunchy mess.
OMG that's the dude who made me feel like crap about asking him to wash up... When he knows he's a DirtyTyler!!