Usually a dumb kid with less knowledge then others, usually temporary, but can sometimes be forever.
by antl3r September 18, 2016

by the dear leader 123 December 3, 2020

1)Some one who is a either a retard or stupid looking
2) Something random to say in a awkward situation
2) Something random to say in a awkward situation
Look at that guy being a derp.
That derp is giving me eye cancer from looking at him.
Person: I'm Bi
Person 2: DERP
That derp is giving me eye cancer from looking at him.
Person: I'm Bi
Person 2: DERP
by Moosic June 10, 2016

In the context of the internet and online slang, "derp helmet" or "need a helmet" often implies that someone is acting foolishly or making a mistake, and is a rude way of saying someone needs to be more cautious or thoughtful.
Kelso! Put on the derp helmet! What's a derp helmet? It's In the context of the internet and online slang, "derp helmet" or "need a helmet" often implies that someone is acting foolishly or making a mistake, and is a rude way of saying someone needs to be more cautious or thoughtful.
by B-rizzle February 17, 2025

by SomeDerpyPerson August 14, 2023

used as a substitute for speech regarded as meaningless or stupid, or to comment on a foolish or stupid action.
by Yo_Angie April 21, 2022

by TheNoNamedNigga September 23, 2019
