A state of extreme lassitude so intense that nothing is possible. Can affect any gender.
Guy 1: Dude, you've been binge watching for two days straight. Let's hit the taco place and find some cute chicks!
Guy 2: ommmphhh.. I can't. I'm experiencing flaccitude and can't move. You go without me.
Flaccitude is the state of being tired and at the same time being unable to get an erection. The combination of the two problems together, would strongly suggest that you were suffering from this condition.
Ever since I caught the flu, I've had no energy at all. It seems I can't even get the hard on anymore. I feel pretty certain that I'm suffering from flaccitude.
Jack: "Look at that planet, it is sooo spherical!"
John: "No, I believe you are wrong! It is obviously flat!"
Jack: "Dude, your flattitude is showing!"
A combination of the words "flaccid" and "hideous" used to describe a whole new level of ugly (women). The condition of (a woman) being so hideous, the sight of her makes most mens' erections deflate into a useless flap.