The scene: Ben and his good buddy M, playing trains on the floor, Eli roaming around in their midst. They are pretty quiet, occasionally speaking without stopping the game or looking at each other.
Background information: Eli calls himself “Li-li.”
The dialogue, in matter-of-fact tones:
M: “Eli’s crazy, isn’t he?”
Ben: “Yeah, he really is.”
M: “I mean, ‘Li-Li-Li-Li-Li-Li-Li,’ all day long.”
And when you put it like that, who’s to argue?