VANK is the psuedonym of a prolific Korean spammer.
Me: Shit, VANK just sent me millions of spam e-mails about some shit called Dokdo. Whatever.
A very angry wank.
Girl: "Me and my boyfriend were suppose to meet last night, it was going to be the first time we made love."
Boy: "What happened?"
Girl: "His car broke down and he couldn't get here!"
Boy: "Ha, I bet he had a Vank."