23rd Oct: It's time for the second TV Tropes Halloween Avatar Contest, theme: cute monsters! Details and voting here.
For any kiddie from schoolTropes about one entity or group despising another (and not necessarily for a sensible reason, either). This hatred can be one-way or mutual, but it always makes things awkward at best (and hellish at worst). Compare Revenge Tropes. Contrast Love Tropes.
Can love like a fool
But hating, my boy
Is an art.
— Ogden Nash