1. Referring to something impressive, comparing it to "ill na na" (the slang term for great pussy/vagina/sex).
by Tom Russel May 29, 2008

Something that is beyond both "mad cool" and "ill." Anything refered to as maddus ill is quite possibly the dopest thing ever.
When Fatty busted a 720 D-spin off a big kicker at Mountain Creek....now that my friend was maddus ill.
by Joshua Rovner February 23, 2005

by Socci January 17, 2009

Music of a superior quality, which generally makes you want to you shake your booty to attract some buff tings
by Beccy (still got love for the streets) March 7, 2008

by walead January 25, 2009

noun: A virtuoso, power drill-esque male sexual performance defined as a constant, consistent, and prolongued hellacious pounding of the inner depths of the female vagina with the penis; often results in extreme painful ecstasy and intense post-coital soreness for the female and messianic self-satisfaction for the male.
Yo dude! I was on fire last night! I gave that broad the illest dickin' of her life and now she can't even walk!
by Otto Von Spoonybarger April 14, 2005

by BradON February 10, 2006
