Easily identified by inhuman muscles, short temper and small wits.
The bigger a boler a man his, more gorilla like he becomes untill he reaches a certain stage when he has too much testosteron in his body.
Then his body changes the testosteron into oestrogen and starts to grow man boobs.
So, endowed with a woman's breasts the boler will walk the earth, unable to satisfy even himself as he also becomes impotent.
This makes him even more short tempered and angry, thus putting more strain on his already overworked heart and ensuring an almost certain death by heart attack.
"He was so heavy on the juice that his heart popped when he tried to tie his shoes."