Top Definition
To greet someone in a gangster like fashion. But all social groups can use it. Kind of like what's up but way cooler.
Jerome: yo what's ill bruh

Anj: OMG he said what's ill he must be so cool.

Sam: what's ill girlies.
by Incognito mode January 10, 2014

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.