Slash -- Axl Rose Bashing at Walk of Fame Induction

Slash just officially received his "star" on the Hollywood Walk of Fame ... in a ceremony complete with cocaine jokes and Axl Rose insults ... courtesy of Charlie Sheen.

Sheen was one of the speakers tapped to honor the Guns 'N Roses guitar legend ... and opened the ceremony by saying, "It's quite fitting that Slash is getting a star on the very street Axl Rose will one day be sleeping on."

He added, "This star is going to be stepped on more than the coke we did in the 80s."

The whole ceremony is pretty epic -- check out the video.