As in Croydon, Surrey/Greater london.... As in the C-R-Oh Noooooo! As in the epicenter of the universe.
"Fuck Bromley - Its all about the Cronx!"
by JadeRoxyPizzle January 29, 2009
To defend your nationality, race, so, etc. in an uneccessary rude way.
Danielle was so totally cronxing out, earlier.
by Zilf September 20, 2007