Somebody who participates in anal sex and vaginal AND ear penetration all at the same time using one penis.
"Wtf man...is he dorking that chick?"
"Yeah dude. So what?"
"But how does he do that?"
"lemme show you"
*whips out cock*
"Dude, you just thrusted your cock into my ass man, I want an explanation out of this at least..."
"hehehe"