Top Definition
A measure or act of total stupidity.
1) It took an enormous amount of planktitude to put petrol in the fuel tank of a diesel car.

2) Walking into a closed, glass patio door would be an act of planktitude.
by h1ppyj0hn October 13, 2009
Free Daily Email

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

Emails are sent from We'll never spam you.