When a person with sever flatulence sits on upholstered furniture and the vapor of their farts have permeated the fabric to the extreme that no amount of cleansing or odor remover can remove the smell.
I need to buy a new office chair, because Eddie permafarted on mine.
1. A combination of the words permanent and temporary.
2. Used when someone presents something as permanent when it is actually temporary and/or vice versa. This may be done purposefully or in error.
a.
BOSS: This will be your office while you work here.
YOU: This windowed cornered office is the business.
COWORKER/JERK: Don't get too comfy. No one has stayed in this office too long. It is totally permanary.
b. Just because he/she says "We are going to be together for ever..." doesn't mean that the relationship will avoid permanarity.
A person who has taken and abused drugs for so long that they achieve a permanent state of "highness" whether they are on drugs or not. They are literally a little bit "munted" forever...