Dirty Bird2.0 is when someone sticks there finger up sed asshole and licks it and or pees, cums on or squirts on then gives somone a wet willy and sticks it in there mouth.
Fred uses a Dirty Bird2.0 on his frend Ala by...
When you stick your finger up someone's ass lick it give them a brown willy and also stick it in sed mouth of there's.
Catching played a prank on he friend by doing a dirty bird2.o