Like Verbal Charades

As we were thinking of desirable dinner options...

Neptune: What about that dinner Grandmama likes to make? Bingo? Bongo?
A: What?
Neptune: You know. It starts with a B...
Me: Maybe you could describe it.
Neptune: Well, it's a soup with sausage in it. And it starts with a B... bongo?
A/me: Umm...
Neptune: It makes me think of an elephant.
A/me: WHAT?!
Neptune: You know, the elephant with the big floppy ears?
Me: Dumbo!
A/me: GUMBO!?

And thus, the mystery was solved.