Boss head is when a female gives a male a bj.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

A massive cone shaped spliff

A boss head is the reference given to a considerably large spliff. Often characterised by its formidable appearance, a boss head is considered the ideal joint for any occasion.

Ways of spotting a boss head:

- The spliff has a very tapered design with one end measuring 1cm or more in diameter
- The person smoking it appears to be in a blissful place
- (or depending on the user) The person smoking it appears to have had enough and is eager to pass the spliff to the next person

jet lag you get from flying LAX (Los Angeles) to BOS (Boston).

same as a knobhead, derived from playground slang in the NW of England in the 1980's