Should be used with extreme caution. Experience has shown that many people do not understand the concept of jib and as a result friendships can be broken.
2. jibby (adjective) a person of statement that displays jib.
Sorry I called your mum a worn-out shoe last night, I get a tad jibby after a few ales lad.
Jib is to do a trick off of an unusually placed object, such as a rail or a box in a snowboard park (no the rail is not supposed to be in the middle of a trail).