I might accept that as a derivative.<quoted text>
Flup 18 up, 8 down
The black, mushy goo left in the bottom of your glass after dipping oreos (regular or double stuffed) into milk.
Austin: I just ate a whole box or oreos!
David: Did you dip 'em in milk?
Austin: Well duhh.
David: Dang that must have made a lot flup!!
Austin: Chyeah it did.
"A system of pipes leads from the bottoms of oceans, under the Ringworld floor, up the back of the rim wall and over the edge, to recycle seabottom ooze (or flup) into spill mountains... "
Niven, intro to "Ringworld's Children".