Top Definition
The cause of a momentary increase in technology purchasing, due to a particularly desirable new piece of equipment being installed. A portmanteu of "Upgrade" and "Radiation"
Ever since Bill got that new 27" iMac I've had to buy four more for other employees. It's emitting upgradiation.
by the classicist March 25, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×