(Ma-lar-i|ous) Derived from the words "malaria" and "hilarious" < Something Grim yet hilariously funny; pertaining to a bizzaro, madcap humor (Looney Tunes) but also something Grim or Evil (Grim & Evil). Mostly used in a positive fashion.
(adj.) Being bold or glorious with loads of testosterone. Only the manliest of the man can obtain this as their own, true title. Quickest way to obtain the adjective "mandacious" is to wrestle 2 crocodiles, 4 bears, and capture 20 roosters only using your bare-hands.
EX. 1)
"DUDE, I FEEL SO MANDACIOUS THAT I AM ABOUT TO RIP MY SHIRT!"