"dey normli speek lyk diz" and listen to Hip Hop, and hang around the streets smoking and acting cool.
Also see chav
Joe: you cnt handle da trueth
Me: You can't handle the English Langauge.
Joe: y not?
Me: Point Proven
Conversely, English has already been the most bastardized language over the centuries, having taken many words from multiple languages and confusing the hell out of non-native speakers. But people of today's generation do NOT need to go intentionally out of their way to bastardize this already-confusing language further.
Person who speaks proper English: "Learn some basic English, fucker. I've got no idea what the hell you're saying."