Max: Everytime I hear someone talking about updog, I'm torn between not wanting to fall for it and wanting to help them complete their joke.
Jamey: Okay, but what is updog?
Jerry: updog is a long sausage in a bun, often served with Ketchup, Mustard, onions, and/or relish.
Faz: Not, that's a hotdog. An updog is when a new version or patch of an application is released.
Felix: No, that's an update. You're thinking of the fourth largest city in sweden.
John: Surely, that's Uppsala, where's updog is the giant spider in Harry Potter.
Max: That's Aragog. Updog is a symbol conventionally used for an arbitrarily small number in analysis proofs.
Faz: You're thinking of epsilon. Updog is an upward moving air current.
Jerry: No that's an updraft. An updog is the modern version of henway.
Jamey: What's a henway??
Max: Oh about five pounds.