Top Definition
What happens when you've had so many carbs for lunch (or not) that you can no longer function properly.
I'm sorry I forgot (insert the stupid thing that you did that you are apologizing for here). I had lunch brain.
by Sue Bell September 25, 2008

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.

×