Originally Posted by: oib111I saw a vid of this heavy metal dude, and he was using a floyd rose, he was doing a tut and he said "blablabla also drop d blablabla" and then he like pulled a lever or summin on the bridge and his guitar went to drop d?

Ah, he probably had a 'D-TUNA' fitted to his guitar - something Mr Van Halen came up with. Check it out here.