also known as omfg or 0mf6 or ¤/\/\£6...etc.etc.etc.
basically it means exactly the same as omfg which means "Oh My Fucking God" but in this case has become "0h /\/\y fucking 6ood"
This is known as 1337 5p34k
People who are truly 1337 do not use normal characters from the alphabet.7#475 #0W 51M|>£3 !7 15