Flexitis is a serious medical condition currently on the rise in North America. It pertains to cases of extreme flexing on your fellas even though the actually don't give half a shit. As of January 24th, 2017 the CDC had reported over 245 cases in 17 US States, and had voiced worries of the disease spreading out of country and possibly overseas.
(NOTE: This disease can only be diagnosed with someone holding a certified nigga pass)
Fella with flexitis: Yeah I got another 150 on deck its crazy
You: I'm sorry sir, but I may just have to diagnosis you with terminal flexitis