Force field kid
The person who always has to be right or one up you; i.e. the kid on the playground that would always have to win at playing make-believe, extending into adulthood by the manipulation of information not known to everyone.
"okay kevin that's a hit, you take 13 points of bludgeoning damage"
"actually i'll use my Uncanny Dodge ability to take half the damage, then i'll use my reaction to activate my parry battle maneuver in order to make a counter-atta-"
"Kevin. Don't be a force field kid."
"actually i'll use my Uncanny Dodge ability to take half the damage, then i'll use my reaction to activate my parry battle maneuver in order to make a counter-atta-"
"Kevin. Don't be a force field kid."