Wikipedia describes spaghettification as "the vertical stretching and horizontal compression of objects into long thin shapes (rather like spaghetti) in a very strong gravitational field." On planet Earth, one can unfortunately come across a gravitational field emitted by an extremely negative person - with similar results. The experience feels unpleasantly like being drunk. If you're wondering what's so unpleasant about being drunk, ask a glass of water.
For Spaghettification: Definition Two, click here.