An uncontrollable reaction to a particular event or stimulus where there is a total loss of most brain action.
1. As Bob and Joe were walking by the park, they had a sudden urge to play on the jungle gym due to spontaneous retardation.
by Better than Bacon? Impossible. January 09, 2010

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.

×