A dirty Ryan is when you get any vegetable (as long as you've grown it yourself) and insert it violently into your girlfriends ass whilst simultaneously eating cake from your snacks cupboard.
"Thingsgot wild in the bedroom last night, we did the dirty Ryan!"
When you get on top of your bitch and shit out a tiny bit to your turd is about halfway out your bumbcrack and you draw on her stomach using your turd as a crayon. A close cousin to the cleveland steamer.
"Hey dude....how was sex last night?"
"Man she loved it, no chick can resist the dirty ryan!"
A sexy aussie with a body blessed by eminem the snail lord he never gets tired and he want sex in so many ways if you are with him you shall be blessed as his seaman are the offspring of amazingness he creates the kind of orgasm that would make your legs shake