how does penelope curse antinous for his behavior?

The others give Odysseus food, and he praises Antinous' appearance and starts a story about how he was once rich, too. Antinous interrupts him, orders him out, and hits his shoulder with his stool. Odysseus is unfazed by the blow and calls on the gods to kill Antinous. The other suitors scold Antinous for hitting the beggar in case he is a god in disguise, but he shrugs it off. In her room, Penelope hears the blow and wishes ill will upon Antinous.