1.) High + Chilling
2.) The aftermath of blunt to the face.
Tyrone: You I just smoked an L to the dome and now I'm straight hillin'.
Rufus: God damn right, that shit got me hillin' like it was 1994.
The most spectacular sport of finding the steepest, rockiest hill you can and flinging yourself down it at 2am.
Waggz, Ssez, and Kraze are the pioneers of hillin'.