In "Cartman Joins NAMBLA", two groups, both named NAMBLA coincidentally, held meetings at the South Park Inn on the same day.
North American Marlon Brando Look-Alikes
The North American Marlon Brando Look-Alikes had a meeting here. After being mistaken by the FBI for the other NAMBLA, the North American Man Boy Love Association, they joined forces with the FBI, in order to catch the other NAMBLA at the South Park Inn.
North American Man Boy Love Association
The North American Man Boy Love Association had a banquet here in Eric Cartman's honor. The group invites Eric's younger friends to their meeting. Instead of the mature friends Cartman was looking for, they turn out to be pedophiles. The members of this organization are later arrested by the FBI, preventing them from molesting the boys.