Other forms: mangled; mangles; mangling
When you mangle something, you completely destroy it, by ripping, cutting, crushing, or otherwise mauling it into pieces.
You shouldn't leave your new puppy alone in a room with your favorite shoes because he might mangle them with his sharp puppy teeth. A bad accident will mangle your bicycle, bending it beyond repair, and a paper shredder mangles a document by slicing it up. You can also use the word mangle to describe what happens when your uncle's terrible bluegrass band performs a cover of your favorite classic rock song — they mangle it.