What does Jeremiah 51:44 mean?

I’ll punish Bel, the god of Babylon, and make him spit out everything he’s swallowed. Nations won’t come to him anymore, and Babylon’s walls will fall. Jeremiah 51:44 - Modern Text Bible

(God will defeat Babylon’s main idol, Bel, exposing its powerlessness. The city’s defenses will collapse, and people will stop coming to worship there.)