Derp Mah

1) When someone gets excited playing a card game (ie Monopoly Deal) and spills food on themselves.

Dammit, you spilled food again! What a Derp Mah

Eurp a derp

Slang of stupid, or dumb.

Man he's such a eurp a derp

polar derp

that one motherfucker who makes music

Person 1: Yo did you see the new polar derp album?

Person 2: it's trash as fuck

Derpe

A gay dude

Aka Peder which means Gay in Serbian

AHAHAHAH he's derpe

GAJ-derp

Grizzly Autistic Joe - derp. The derp is just a phrase with no meaning besides derp and hitting ur hand against your chest in a stupid fashion.

GAJ-derp casts confuse ray! But enemy casts WOW back! It's super effective!

pull a derp

The act whereby one tries to do something, but will fail without a doubt.

Daniel: Watch me get this clutch on CS:GO!
*Get's AWP'ed*
Jason: I knew you'd pull a derp.

Derp Drop

When you take a shit and the outcome looks like Eli Manning.

Dan ate a bunch of Indian food and had a record setting Derp Drop. It was a spitting image of Eli Manning.