Herp Derp Share definition Flag 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!' Herp Derp by ghobi and tcap October 5, 2010 0 0 Get merch Get the Herp Derp mug. Buy Now — $32.95 See more merch