Thanks to Lali and Freddy, October has been designated as "Make Up A Word And Its Meaning" Month.
Here are a few examples to get us started:
sargeanting (noun) : the act of accompanying a lower ranking police officer on patrol
lieutenanting (noun) : /see above/
withitness (noun) : attentiveness by the instructor to the pupils' behavior and participation in the classroom
bouffantoid (noun; adjective) : a person with overly styled, sprayed, and teased hair, commonly seen after an individual leaves the hair salon. I was such a bouffantoid today that all I needed was a fringed outfit and a microphone and I could have performed in Nashville.
blackberria (noun) : a syndrome seen in persons who cannot go anyplace without their handheld blackberry
appdiction (noun) : more severe than blackberria, an addictive disease characterized by users of mobile devices with a plethora of applications available whereby the user cannot function normally in daily life without them
edit for clarity and typos