blemish, mar, defect - a mark or flaw that spoils the appearance of something (especially on a person's body); "a facial blemish"

dig - a small gouge (as in the cover of a book); "the book was in good condition except for a dig in the back cover"

edge tool - any cutting tool with a sharp cutting edge (as a chisel or knife or plane or gouge)

creating by removal - the act of creating by removing something

mar, mutilate - destroy or injure severely; "mutilated bodies"

gouge out - make gouges into a surface; "The woman's spiked heels gouged out the wooden floor"

fleece, gazump, overcharge, plume, rob, soak, surcharge, hook, pluck - rip off; ask an unreasonable price

bleed - get or extort (money or other possessions) from someone; "They bled me dry--I have nothing left!"

core out, hollow out, hollow - remove the interior of; "hollow out a tree trunk"