1 definition by RandonDonald

Acting as a know it all when it comes to sports but living off past accomplishments of a team. Knowing nothing about the current standing of said team, along with gloating about the team for which you've never taken the time to visit at their home stadium.
You've been sumptering about this team for years, but still haven't taken the time to even visit the stadium, classic sumptering fan. Do you even know anyone on the current roster or are you going to just continue to live off of the championships you won 25 years ago?
by RandonDonald May 13, 2016
Get the sumptering mug.