A permadip is the result of putting in to many large pinches of smokeless tobacco. This causes the lip to bulge out to appear that you have a dip in when in all reality you do not.
Man, does that kid have a fatty in or is that just his permadip?
A mix between "permeate" and "appreciate" meaning after a while of knowing someone, their personality has permeated through your outer layer and gotten to the point where you appreciate their character because you have just straight up gotten used to them.