Top Definition
An exceedingly long foreskin that shlops and wrinkles past your knees.
When ge goes to sleep, lets staple his foreskun to his knees.
by NICK January 12, 2003
1 more definition
A really long foreskin that hangs past the end of the penis and looks kinda groos.
That dudes foreskun is a mile long.
by just nobody special June 08, 2004

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