Top definition
Someone who acts a little odd, or does something hilarious, or dangerous to the point that you are in shock, or having a laughing attack.
Oh my, you are such a wacknugget! i can not believe you just did that!
by Ashley Giambra. March 27, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug