A person who shows off by showing their friends how cool the definition of their name is on this site. Mostly applies to males who like to show how their name means sex god.
Person 1: "Dude look my name means I have a huge package."
Person 2: "Wow, STFU. You're such a dictionary gloater."
Sue: I'm going to Disney this weekend!
Aaron: Meh, I have a house in Disney. I mean, it's alright, but I'd rather ski at my place in the alps.
Sue: Don't be a gloateus maximus.