It is an important concept for sports bettors to understand. For many years. . Terms and. Sign-Up today for a new account at BetMania using the Spooky Express Promo Code: SPOOKY and receive a % FREE PLAY Sign-Up Bonus! Review. 5 active coupon codes for BetMania in December Save with [HOST] discount codes. The vig describes the house edge that an online sportsbook takes on its betting lines. Compare the most trusted online betting sites, FanDuel, DraftKings, and BetMGM. Get 30% off, 50% off, $25 off, free shipping and. betmania as some [HOST]ut Us | Low Vig Reduced Juice Every $25 in Casino action gets you a ticket toward the raffle. SBR reviews the best online sports betting sites in the US. .