An Irish tiktok trend consisting of commenting “protein bor” under any video. Originally started by James Doyle, @jamesdoylefitness on tiktok, a popular Irish tiktoker known for reviewing protein bars. The spelling of protein bor comes from James' thick accent. Some say his accent is as thick as the thots he does deep squats for.
On the chat and conversatin messageboards of elitefitness.com, there was a poster known as massivegunz who had horrible spelling. He inadvertently typed the word bor instead of bro (brother). It became a raging sensation.
Referring to a very good friend in the bodybuilding community.