Gravel dick: This is an imaginary sexual act motivated by extreme hatred. The perpetrator develops an erection, then slathers their penis in crazy glue, followed by the application of copious amounts of aquarium gravel. The perpetrator then sodomizes the victim repeatedly causing torrential anal bleeding, and permanent
anal incontinence. As this rather despicable act causes rather intense
pain, and perhaps permanent injury to the perpetrator (as
well as the victim) it portrays the depth of hatred towards the victim (i.
e., I hate you so much I would do gravel dick on you). You have to really hate someone to do gravel dick on them. Most often used as a mental revenge fantasy against those in the
work place. Somewhat comparable to
donkey punch in that it is imaginary, and involves violent inappropriate sexual content.