The act of heating a knife over a stove-top, then shanking someone with it.
My woman was hatin' so I hotknifed that bitch out back.
The process in which you heat two knives over a stove and hold a nug between the two in order to burn the candy in a way that doesn't require fire. Once the nug is placed between the two knives, cut a two liter bottle up so that it can hold ice and so that you can breathe the smoke in.
Dag yo, those hotknifes got me hella blazed son.