Gastinance 

Refusing to drive due to high gas prices.

Dude, Joe has been practicing gastinance ever since gasoline rose to $4.50 a gallon.

Gastinance by Ryan Hubenschniffer June 25, 2008

gabstinence 

A long period of time without talking to someone either by happenstance or on purpose.

Man, my broseph and I used to talk everyday, but ever since he moved away were going through a period of gabstinence.

gabstinence by J-Cats October 21, 2011