JagFest. Share definition Flag Term Used to Sneak Over to your Boyfriends House and Have Sex. Uaually Lasts for Two Hours. strawberry bob peaches Next tuesday well go to JagFest. It will be amazing. JagFest. by Claire. March 22, 2008 0 0 Get merch Get the JagFest. mug. Buy Now — $32.95 See more merch