An embarrassing public erection. Derived from the Will Ferrell movie "Anchorman"; specifically, the scene in which Ron Burgundy (Ferrell) gets a very obvious erection while asking out new co-worker Veronica Corningstone (Christina Applegate).
Friend 1: "Oh man, I was in Algebra checking out Ashley's ass when the teacher called me up to the board to do a problem. I had such massive burgundy, everyone started laughing at me... F**k, my life is over."
Friend 2 (laughing): "Yeah, dude, I heard about that already. It's all over school. You might wanna stay home sick tomorrow. But hey, maybe some of the girls were impressed."