Something you say when your friends or people around you say something so stupid that it's hard to think of why they said that
Person 1: Dude did you know that ice cream has to stay cold.
Person 2: (sighs) Derp
Person 1 - "dood u sucha derp"
Person 2 - "ya me kno dood"
Persons 1 & 2 - " hahahaha"
When someone makes a mistake, normally a exclamation
Ex:
Person: Hey yous there!
Me: it is you
Person: Derp!!
Someone with low intelligence, or a stupid decision.
That guy is such a derp.
I just dun derped.
It means that you are very silly or you aren’t serious
Nila sticks her tongue out and says derp