you'll often see this on stan twitter or anywhere because most of celebrities are known as "best boys". why? because we use the word to say someone is the best.l and who wouldn't want to call their fav the best.
by amirawithluv September 24, 2020

by Aries Something November 10, 2020

by Whyamialiverightnowlikeog April 29, 2021

A girl's best friend.. who will always be there for her no matter the situation or problem.. When you are sad he will cheer you up by telling you a funny joke or something..He will always give advice when you need it.. boy best friends are the best.
by Queen Kammie January 9, 2021

A guy who gets zero pussy or knows he has absolutely no chance with the girl he likes so he becomes her friend and acts supportive so when shes hurt/in a breakup he can take advantage of her and get what he wanted.
by Wiseguy1207 August 15, 2022

by shxhiewif September 13, 2022

The day that you spend with your boy bestfriend and celebrate the time you’ve been together and share great memories and funny ones and have a good laugh
Stranger: What day is it?
Bestfriend 1: didn’t you hear?
Stranger: no..?
Bestfriend 1: Well... ITS NATIONAL BOY BEST FRIEND DAY!!! You should go celebrate
Bestfriend 1: didn’t you hear?
Stranger: no..?
Bestfriend 1: Well... ITS NATIONAL BOY BEST FRIEND DAY!!! You should go celebrate
by National Boy Bestfriend Day December 1, 2019
