Used by bros? Have you tried all the various versions of bro? Bro, Broski, Broduski, Broseph, Broseiden, Brochacho...I'm sure there are more. Generally, the more complex the bro, the more...unsavory the person, in my experience. >.>
I classed all those word under "broism" "a word, the meaning of which has been altered by the substitution of 'bro' for one or more of its syllables"