Derp

When performing a combo on someone online that has one or more Straight Up Jumping Punches and a x-ray in it, in MK9.

GOOD GOD, DID YOU SEE THAT DERP I DID TO THAT GUY?!?!?!

I derped him hard, coach.

by R_X_S_D & T_B_Z_A August 20, 2011

Derp

Blacking out in the shower

I derped this morning in the shower

by herp derpy ferpy October 20, 2010

derp ball

A silly person that makes you happy and laugh c:

My boyfriend is such a derp ball

by XxxDesyXxx October 25, 2015

Herp-a-derp

The sound used to describe melee killing somebody in Halo: Reach.
First strike:Herp
Pull back:a
Second strike:derp

You should have seen me man! I ran up to this bitch and herp-a-derped him good!

by How is this name being used? October 21, 2010

Herp Derpes

An acquired disease of herpes when the recipient got it from someone who has blatantly obvious herpes,;you would have to be blind to miss it. Indicating the "herp derp" part of the word.

Mike: Dude, I just did it with the new chick.
John: Why? She has herpes, are you stupid?
Mike: Fuck me man, now I got herp derpes.

by Frostblade468 June 19, 2011

Herp Derp

A sexually transmitted disease contracted from sex with dick mongrels.

She was tryin to slob on my knob, and I was like 'Nah, trick I aint tryin to get no herp derp, get off my dick!'

by ghobi and tcap October 5, 2010

Herp a derp

Herpes.

Fuck a ho and you might just get the herp a derp.

by timmy9999 November 13, 2011