It wasn't like the guy was lying. He was in fact a man. He was walking on two legs, had no fur, no tail, no floppy ears... he didn't even have a proper snout! He was very much a man, but Tramp didn't like saying it out loud. It didn't want to say those four words: I am a man.
It felt odd, made him cringe just thinking about it. Maybe he had some high hope that eventually the thing that brought him here would turn him back into a dog, but this just sort of confirmed it was never going to happen.
"So I am," his perk seemed to have died down. Tramp felt glum all of a sudden. "Tramp, though you could call me just about anything, doesn't much matter to me, fella."