A BROTERNITY is the most powerful and closest type of fraternity.
Broternity or Bro Is a group of established "Bro's" who are always down to chill have a good time and teach others the way of BRO. You are also able to replace the beginings middles of words with the word "bro" to form another even more bad ass word.
Noun, the name given to conventional paternity leave which is seamlessly bolted on to a period of sick leave.
Graham, "what a tosser Seb is, he's meant to be working on that project but he's gone on baternity leave," Colin, "yeah, amazing, he caught that bug just in time to get a straight five weeks off; fucking planned it I think."