Someone known for their white lies. Usually by the name of Marcus.
That man right there is a capper.
some one who is being kinda homo
When that guy just got a seizure, he was being a capper!
A person who feels the need to constantly correct others, or prove their lies incorrect, also known as capping.
John was a big capper, barging into our conversation and disproving my friends story of him going fishing because that species didn't exist in the USA.
Person 1: "Oh, Syed said he'd come to workouts today"
Person 2: " hahaha that's hilarious, he's such a capper"
*Person 1 and 2 laugh for the next 30 minutes*
A capper is someone who lies constantly to his friends and family, someone like historical capper “Aidan A”
“I’m going to the party” then proceeds to be a capper and not go to the party