"lardbucket" means: A crude and derogatory insult aimed at fat people — blunt, mean, and designed to humiliate. It's the kind of word thrown in schoolyard fight.... It carries a violent or aggressive reference, so it is worth noting the context. In most cases the word is used jokingly or for emphasis rather than as a sign of real intent. A calm question about where it was heard is usually all that is needed; pay more attention to behaviour and tone than to the word itself.