A character of folk myth and fable known for his cruelty, a pitiable cruelty that tales tell is an outward manifestation of psychological scars inflicted as an infant during a botched circumcision performed by a vagabond rabbi using crampons and, inexplicably, a spinning wheel.
Also used to apply to those with a similar affliction.
Yes, I see it, and see why now your nickname is Rumpledforeskin, rabbi.
Reference to the penis of a non-virgin who is uncircumsized.
Also can be used as a reference to a normal penis which has come into contact with a dirty vagina.
"Michael has a rumpled fore skin after getting head from that dirty hoe"
"dude Michael just got his foreskin rumpled by that nasty cunt"