Jib is a word that can be used in place of any noun or idea in the event that using the actual word for the noun or idea is inconvenient or undesired for any reason.

Smokin home made gravity bongs made out of a water or Gatorade bottle and a pitcher of water.

Your teeth, but can be used to refer to any of the general visible mouth area.

Verb. To jib. Jibbing. The act of manuvering a bicycle, skateboard, snowboard or skis in tricky manner on top of and around a structure such as a stump, rocks, stairs, railigs, rooftops, etc. When you are playing around, showing off, jumping, flipping, hopping, etc you are jibbing.

a way of being or thinking.

Slang for Crystal Meth

A jib is the front sail from large frigate ships of ancient days. You used to be able to tell what kind of ship and what nationality they where from.