A fucking loser with a giant truck who hangs out at either the tractor supply or local wal-mart after the hours of 9pm. A BO may have one or more giant antennas the size of a basketball hoop COMING OUT OF THEIR HOOD built for landing spaceships or attracting other BO'S or mudbumpers. It is not uncommon for a BO to use words like < fixin, yonder, thurr, >
BO by FROM THE 603 February 3, 2010
A classic country boy. Hobbies include cracking open a cold one with the boys, listening to country music, hunting, fishing, and letting as many people as possible know that he has a truck. Most likely owns at least 2 pieces of camo clothing and also like 27 baseball caps.
“Yeah, I went huntin today. Also drank 14 beers. Also got new subs in my truck.” “Dude you are such a bo”
Bo by Courtneyjames January 8, 2018
person 1: my whole family thinks i'm queer, it's all that I ever hear
person 2: oh
person 2: are you a bo?
Peson 1: yea
person 2: oh
person 2: are you a bo?
Peson 1: yea
bo by Lil Sixnine 69 August 15, 2018
It is like another way of saying "omg". It is a form of shock and excitement and confusion. A word that is said very impulsively in the presence of a crazy and unbelievable situation.
Amanda: Wait did you guys just see that?
Keira: Did he just...
Lindsay: I can't believe he just did that.
All: BO
Keira: Did he just...
Lindsay: I can't believe he just did that.
All: BO
Bo by bo123bo123 December 15, 2019
Bo is a 20 year old man, who's attracted to young kids (13-15). He lives with his parents and has his mom do everything for him, a literal man baby.
Bo by Raini rodriguezred April 15, 2020