Not entirely sure why you are suddenly hungry, you decide that it couldn't hurt to at least taste something. You break off a piece of the root vegetable from the non-rotten end and take a taste of it.
But the moment the root vegetable hits your lips, you find yourself getting aroused. You drop the vegetable but keep getting more aroused. Amazingly horny, you race out of the room to search through the house for someone to get into bed with. Dimly you recall that "root" is Australian for "have sex"...