Probably not - he was actually a bit late, so he stood, and probably was even further back. But the nickname, whenever given, is totally accurate.

And probably fair, since Zuko's recalling House from the introducions based entirely on the cane.

"I think I saw you at the meeting," he says. "Although I'm not sure I remember your name, I apologise."

Whereas a normal person would just have asked, 'who are you?'