Top Definition
Like a douchebag is a bag of douche or literally the device used to clean the womans genitals, a derpbag is a whole bag of derp.
Boy: Wow, you're such a derpbag.
Girl: Screw you, I like hipster kitty.
by Senor Ikea July 21, 2010
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.