1 definition by kafaboy

Top Definition
When something is really weird and terrifying and traumatizing in a way you can't forget. Extra points if it involves freaking out younger family members. Based on the crazy youtube video.
That murder scene in the movie was really I Am Your Grandma.

Q: Man! Why did you just run naked through that elementary school?
A: I Am Your Grandma.
by kafaboy May 15, 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.