When one drops trough and
proceeds to wipe one's filthy
butthole on a public surface, such as a public bench, street, or public
causeway.
"Man someone just colonial bootscraped
the shit out of this payphone."
"Man, Im just
gonna have to get some new undies. I colonial bootscraped right through this woven cotton support layer."
"Who colonial bootscraped
the seat. that's not cool."