To shred on a guitar means you play it amazingly fast and flawless. It takes great talent to do it properly!
"Dude! At that AC/DC gig last night, Angus shredded that solo for Back in Black!"
i believe you mean how to you shred on a guitar. shredding is playing very fast. there are many different ways of doing this, tapping, sweep picking, two hand tapping. for more ideas on how to shred...
It's certainly possible to play pretty fast; things like fingertapping are harder because of the size of the frets and the size of the strings, though, and I can tell you from experience that sweep...
The Scorpions released an album in 1974 where Ulrich Roth started experimenting, in 1975 a new album was released which turned out to be the prototype for shred guitar.
One wants to shred a guitar for the pure purpose of awesomnes.
Those that don't shred are inferior to those that choose to shred.
Some shred for showing of , some shred for getting the babes...