Entry 1 sense Webster, 1913 Gascon /(?; F. ?)/ · Gas·con · IPA /ˈɡæs.kən/ 01 a. Of or pertaining to Gascony, in France, or to the Gascons; also, braggart; swaggering. 1. Of or pertaining to Gascony, in France, or to the Gascons; also, braggart; swaggering.