l337tard
A person who thinks they're super smart just because they replace letters with numbers. They act like they're the only ones who can understand the language of the internet.
"You spelled 'cool' as 'k00l'? That's not even close to smart.", Text from a friend
"I'm not just a l337tard, I'm a god of texting.", Tweet from a 1337tard
"You said 'leet' like it's the most important word ever.", DM from a 1337tard