Derping 

1. Internet slang for trolling.
2. In traditional gaming jargon, engaging in a discussion that goes way outside likelihood or canon without any serious intent.

See also derp.

1. Do you actually believe that Twilight is the best ever or are you just derping?

2. "You were saying Wizards of the Coast will bring back halflings as the true beloved of Ao?" "Nah, I was just derping."

Derping by Shaviv January 20, 2009

Derping 

Being scared and coughing.

Bob: Hey! What's wrong with Kevin?
Pierre: Don't worry, he's just derping because he keeps dying in the scary game.

Derping by Le French Man December 3, 2020

Derping 

When you're scared and coughing at the same time

Callmekevin was derping so much in his last video!

Derping by Niamhwaite December 3, 2020

Derping 

scared and coughing

Person A: Don't make me derp
Person B: What do you mean
Person A: Just start violently coughing at you. Derping

Derping by Dissentrix December 3, 2020

Derping 

Coughing while scared.

"I was mid-cough when the character scared me; really had me derping."

"Don't watch scary movies while sick or you might end up derping."

Derping by SynSay December 3, 2020

Derping 

scared and coughing

i'm just derping so hard

Derping by My Alias Was Taken December 3, 2020

Derping 

Scared and coughing.

Kevin is always derping.

Derping by froggay December 3, 2020