Violently thrashing your torso resulting in your arms flinging about and slapping unweary passersby. You must let the movement of your torso fling out your arm, it is not a derp slap if you move your arm yourself.
by Zesty Pepper August 25, 2011

(noun) a fictitious gland responsible for the filtration of derp-worthy stimuli in the human brain.
in a healthy and intelligent individual, it acts as a sensor, indicating when something outrageously stupid has been processed. it tends to result in facepalming, headaches, or sympathetic lulz in defense of knowing that the demise of mankind is imminent.
in an unhealthy or stupid individual, it provides a positive-feedback mechanism, resulting in the individual gaining reward for filling their brain with even more useless bullshit. stimulation of the gland in this type of individual brings about erratic, borderline retarded behavior, and in fact causes them to emanate even more derp to the surrounding environment. this can lead to a derp cascade, which enthralls masses of stupid individuals to do stupid things.
in a healthy and intelligent individual, it acts as a sensor, indicating when something outrageously stupid has been processed. it tends to result in facepalming, headaches, or sympathetic lulz in defense of knowing that the demise of mankind is imminent.
in an unhealthy or stupid individual, it provides a positive-feedback mechanism, resulting in the individual gaining reward for filling their brain with even more useless bullshit. stimulation of the gland in this type of individual brings about erratic, borderline retarded behavior, and in fact causes them to emanate even more derp to the surrounding environment. this can lead to a derp cascade, which enthralls masses of stupid individuals to do stupid things.
(intelligent) I swear, if I hear another stupid thing come out of her mouth, my derp gland is going to explode!
(stupid) DDDDDDDERRRRRRRRRRPPPPPPPPPPP! NUOH MAH GAWD KIM KARDASHIAN DDDEEEEERRRRPPPPPPPPPP!!!!
(stupid) DDDDDDDERRRRRRRRRRPPPPPPPPPPP! NUOH MAH GAWD KIM KARDASHIAN DDDEEEEERRRRPPPPPPPPPP!!!!
by maelstr0m_X1 July 19, 2012

"You know that the stars at night are fake, right? Everything is a simulation. It's all part of the Matrix "Wake up SHEEPLE!"
"Dude, that is some DERP State talk"
"Dude, that is some DERP State talk"
by Talamascaa May 20, 2020

by herpdyderp December 15, 2010

Sexy Cora was in the process of having her sixth boob job to fix her derp tits, but then she herself derped
by Diobjectica February 26, 2011

by That guy over by the icecream November 23, 2010

Any insane rambling online wall of text cited with tons of hyperlinks to web sources of dubious credibility. Quite often ending or beginning with "I have done my research!" and sometimes with idiotic attempts to make themselves sound like a credible "expert" in something.
Dear Lord! I can't believe I read this entire Derp Dissertation on "Flat Earth Theory" by this dude on Reddit! I thought it was going to be hilarious. Turns out it was just mind numbingly stupid!
by TheHappyAthiest November 20, 2015
