A person who is widely known for consistently one-upping someone else during the course of conversation. It sounds like they are just trying to be conversational, but they are really bragging about how whatever you've done or have, they've done/have it more, better, grander, with cooler people, etc.

A: "I have a cat".

B: "Cool, I have two cats".
That guy, Ted, is such a two-catter.

I was telling a story and got two-catted by Ted again.

It was a good evening, but Ted kept two-catting everyone.
by JakeHK December 17, 2019
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