What would happen if i just drank water for a couple days and no food?

i know its bad for you and i dont plan to do it but, i was wondering, if you drink water it stuffs you and makes you feel all gross, so if you drink water all the time you wouldnt feel hungry?? right?? or am i wrong?? cuz wen i was dieting someone told me to drink a lot of water because you wont feel hungry and i didnt but i still ate food, soo yea wut would happen??? would it be just lke starving urself?????