Definitions by crunk nigga holla
derp
A simple, undefined reply when an ignorant comment or action is made. Brought to life in the South Park series, when Mr. Derp made a guest apperance at South Park Elementary as the chef for a day, followed by hitting himself in the head with a hammer and exclaiming "Derp!"
derp by crunk nigga holla December 28, 2005
Word of the Day on August 21, 2012