a hipper, funnier way of saying "congratulations." origin unknown.
"hey, dude, vconras on getting a date with that chick Alice! she is smokin'!"
the term "vconras" is still largely confined to the USENET newsgroup alt.fashion. it originated as a typo for "congrats" in an instant message session between two members, who decided it sounded much better than the boring and ubiquitous "congrats."
a: hey, guess what? I got the job!!!