1.) A person that is commonly thought of as tardy, special, or slow
in the head. Basically, an overall dweeb. It's a term popularly used to dis on someone to their face without them knowing the meaning. It is also commonly shouted at someone that's saying or
doing something derp-ish, wrong, or different.
2.) May also refer to a place or an object that is boring or highly
uninteresting.