Speak the language before you place the bet

What this is. A short glossary of the words you'll actually meet on offshore books and exchanges, written the way I'd explain them to a mate, not the way a rulebook would. No filler entries. Just the terms that change how you bet or how much you keep. If you only learn three of them, make it margin, limit and rollover; those three quietly decide whether offshore betting works out for you.

The words worth knowing

• Margin (vig, juice). The bookmaker's cut, hidden inside the odds. Thin margin, better price. It's the single biggest reason offshore books pay more than the ones at home.
• Limit. The most a book will let you stake on a given market. Win consistently and they'll shrink yours; that's "being limited", and it's the polite way a bookmaker shows you the door.
• Asian handicap. A cleaner way to bet a favourite or underdog, with the draw removed and the line split into halves and quarters. The Asian books built their reputation on it, and once you get it you rarely go back.
• Betting exchange. A marketplace where you bet against other punters instead of the house. You can back (bet for) or lay (bet against). Prices move on real money, and there's no margin-hungry bookmaker setting them.
• Back and lay. Back is the normal bet, you think it'll happen. Lay is the flip, you're the bookmaker for that outcome, taking someone else's back bet. Only exchanges let you do both.
• Rollover (wagering requirement). How many times you must stake a bonus before you can withdraw it. A "100% up to €100" offer with 10x rollover means betting €1,000 first. This is where most bonuses are quietly designed to be uncashable.
• Sharp book. A bookmaker that welcomes winners, prices tight and doesn't limit you for being good. Rare. Worth its weight when you find one.
• Broker. A middleman that places bets for you across several Asian books and exchanges from one balance, hunting the best price each time. The power-user route.
• Value. When the odds are bigger than the real chance of the thing happening. Bet value long enough and the maths is on your side; chase short prices and it isn't. Everything else is detail.
• KYC. "Know Your Customer", the identity check a book runs before it pays you. Do it early and it's a non-event. Ignore it and it becomes the reason your withdrawal is stuck.

That's the working vocabulary. Two of these terms (exchange and broker) have their own routes if your local sites block them, and I've written those up over in the bypass section. Otherwise, when you're ready to actually bet, start here: