Top definition
A person who always says out loud any thought that comes into his/her head, usually with hilarious or mortifying results.
Friend: "We were talking about Donna's new husband Dave, and Anita blurted out that she used to sleep with him!"

Me: "Oh my god! That girl is mentally incontinent!"
by Hexfet November 23, 2009
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