Typically a man who wears vests and beer related clothing and utters inane phrases such as "Imma 'bout to blast you!" Bierer's are also commonly associated with having facial hair and ponytails.
“Dude, I couldn’t fit through the door to class today, had to go sideways just to fit.”
“No way that it took you this long to figure that out man. You have been hitting the gym for years.”
“Shit man, Idk 🤷 ♂️ bigerexia be differentsometimes”