This is the BASIC tutorial for how to superslide in Ocarina of Time. By basic, I mean the easiest and most common way to do the glitch.
INSTRUCTIONS:
1.) Place a bomb down (preferably by pressing r)
2.) Take a few steps away from the bomb and turn toward it. You're far enough if the action icon says "Attack" in lieu of "Grab".
3.) On the 7th or 8th red blink the bomb makes (or ~ 3 seconds), hold L+R and roll at the bomb, mashing the A button.
4.) As the bomb explodes, you should go flying backward with infinite momentum. If you fail, you wont take damage.
*TIPS*
-Don't start off by trying to do it as good as you can, try to just feel it.
-The bomb explodes in ~5 seconds. If watching the bomb blink doesn't help, try counting to three and then rolling (I do this when I'm lazy)
-Practice at Lake Hylia, so you have much grass to rejuvenate your bomb supply.