1 definition by t1234

An annoying person who brags loudly over something stupid or unimportant.
John (playing an online game): "I only have one more zombie to kill, and then I win again. For the fifth time in a row."

Sally (playing the same game): "Shut up, gloat goat, before I stomp your ass."
by t1234 June 2, 2009
Get the Gloat Goat mug.