sportsbook 

A place at a casino where you can bet on sports events other than horse racing. A large majority of sportsbooks are online (DraftKings, FanDuel, and BetMGM are examples), and take up nearly every single ad slot on social media.

Kyle: Hey, did you know that I recently won $2 million through DraftKings Sportsbook?
Chris: That's amazing, but I've only won $45 so far. I place my bets through BetMGM which calls itself the king of sportsbooks. You want to go down to the one in Las Vegas during the Super Bowl?
Kyle: Sure man. I hope I can win another $2 million through there!

sportsbook by The Real Driller February 2, 2022

Sports Book Supervisor 

Occupation in legalized bookmaking which oversees the ticket writers and admin personnel, typically in a casino race and sports book setting. Responsibilities include working with the gaming commission, creating/moving lines, accepting/refusing big bets, getting celebrities into nightclubs and listening to the public's ridiculous opinions on sports.

Tony moved to Las Vegas to be a Sports Book Supervisor. He makes shit money, works nights and cannot take vacation during football season.

Sports Book Supervisor by Chile-Con-Carne October 3, 2006

Sportsboner 

1. verb - A male that has a constant erection.
2. adj - One who is aroused by sports or athletic events.

1. "That dude sportsboner all day."
2. "Bro, this soccer game is so awesome. I have the biggest sportsboner right now."

Sportsboner by Sportsboner September 25, 2011

Sportsboi

A homosexual male version of a "Sportsbro"; e.g., a twink who is passionate about one (or more) professional sport(s) and dresses accordingly.

That sportsboi over there, wonder if I could make him my catcher tonight...

Sportsboi by Butlerian_Jihadi May 4, 2018