The Sports Betting Terms You’re Probably Using Wrong

Ever been talking NFL spreads when somebody starts explaining how they middled between -3 and -5, and you just take another sip of your beer, hoping to ride out the conversation? Or maybe while watching a pregame betting show, the hosts start debating whether there's still any closing line value left, and you're wondering if you missed something.

Like middling and CLV, there are plenty of gambling terms that get thrown around every day but are often misunderstood. Today, I'm breaking down 10 of them so you'll know exactly what people mean the next time they come up.

Where does the American sports betting vocab come from?

Most articles on the subject say sports betting has a language of its own. The thing is, though, many words trace back to somewhere else, while others are coming from foreign languages, often with their original pronunciation getting lost in translation.

Many basic terms trace their roots to horse racing, one of America’s earliest major organized sports gambling markets, where bookmakers had to quote prices and communicate changing odds quickly. The practical demands of the racetrack encouraged compact notation, specialized jargon, and, in some places, coded signals. 

As the industry expanded, it carried over concepts such as odds, favorites, lines, and laying a price. Team sports did add innovations, most notably the American point spread, while Las Vegas oddsmakers and illegal bookmaking networks contributed their own expressions and conventions. 

More recently, gambling vocabulary—particularly around prediction markets—has increasingly overlapped with the language of economics and finance. Add decades of everyday slang, and you get the language sports bettors speak today.

Sports betting terms with multiple meanings

Then you've got terms that mean completely different things depending on the context. Here are five examples:

1. Line

2. • "The line is Chiefs -6.5." = The point spread.
   • "What's the line on the Yankees tonight?" = The moneyline price (odds).
   • "The total line opened at 47.5." = The over/under
   • "The lines are out for Week 1." = Sportsbooks have posted their markets.

2. Action

3. • "There's a lot of action on the Chiefs." = A high volume of bets.
   • "He likes action." = Enjoys betting frequently.
   • "The book took sharp action on the under." = Bets placed by bettors (often implying respected or professional bettors).
   • "No action." = A bet has been voided.

3. Value

4. • "There's value on the Bengals at +180." = The odds are better than the bettor believes they should be.
   • "I'm looking for value." = Seeking bets with positive expected value.
   • "That book offers good value." = Competitive odds or promotions, not necessarily a +EV wager.
   • "The line has lost its value." = The odds have changed enough that the edge has disappeared.

4. Pool

5. • "I'm in an NFL survivor pool." = A competition among participants with its own rules.
   • "The win pool has reached $2 million." = The total money wagered on a betting market.
   • "The exacta pool is much smaller than the win pool." = A specific pari-mutuel betting category.
   • "The pool has grown to 500 entrants." = The group of participants.
   • "The prize pool is $500,000." = The money available to be won.
   • "The betting pool includes all 20 runners." = The set of selectable entrants.
   • "The jackpot pool rolled over again." = A prize fund that accumulates over time.
   • "The sportsbook increased the bonus pool." = Money reserved for bonuses or promotions.

5. Pick

6. • "My pick is the Chiefs." = Here, pick refers to the selection.
   • "The game is a pick'em." = A game with no favorite; neither team is giving points.
   • "I'm betting the Pick 6." = A specific wager type requiring multiple correct selections.
   • "Join our NFL pick'em." = A contest in which participants predict game winners.
   • "He went 12-for-16 on his picks." = The collection of selections a bettor or handicapper has made.

Speak like a bettor, think like one

At the end of the day, it's about, as AngelList co-founder Naval Ravikant puts it, understanding the fundamentals rather than memorizing. I'd also encourage you to speak up, especially in a friendly setting, if a conversation turns to a term you're not familiar with. Trust me, it's easier than getting put on the spot and drawing a complete blank. 

More importantly, never make a decision based on something you don't fully understand, whether it's a piece of jargon or how a particular market works. Knowing the terminology is part of gambling responsibly. There's no basis for an informed choice with unanswered questions still on the table.