1. [late 19C] (US) the head.
2. [1920s] (Aus.) the nose.
3. [1980s+] (Aus. drugs) a metal cone with a hole in the centre, usu. made of aluminium or brass and used for smoking cannabis.
4. [1980s+] (US drugs) a conical cannabis cigarette, which is tapered by rolling with two or more papers glued at an angle.
SE in slang uses
[1980s] (US teen) to fellate.