A word that originates from Philadelphia. Jawn can literally mean anything. People over use it to sound more tough and cool but people from Philly know how to use it right.
Someone who gets with a girl out of their league once. Now they think they can get with any girl they see. It tends to break confidence when they have a One Shot. Soon they start getting rejected by every girl they ask.
Ben had such a One Shot with Amy. No other girl will get with him.