B) One whose titanic strength and audacious nature is capable of going toe to toe with the douchiest of bros, guidos, and other douchebags and surviving unscathed.
Example 2: "Oh my god, Big S is so cocky and crazy that he started a fight with an orange, jersey guido and his 500 cousins at the club last night. And he won. What a bro-hemoth."
2. something of monumental stature in a friendship.
Jason: "word. brohemoth's getting swole."
Sean: "just wanted to say thanks for buying me that lap-dance from that circus contortionist for my birthday the other week. on a scale of 1-10, it's brohemoth."
Paul: "ain't no thing."