Plural; a series of tasks imposed upon the guest by the host. Often times the amount and level of butleries will reveal that the host invited the guest solely for the purpose of making them his butler.
Host: "Hey, thanks for coming over. Will you grab me a beer out of the fridge, and then plug-in the XBOX so we can play some Halo."
Guest: "Dude, what's with all the butleries?"