A "draw no bet" or "tie no bet" in soccer betting is just what it sounds like  you're betting a team to win, and if it ends in a draw, your bet will be refunded. This is a popular way to back a team with a bit of a safety net, albeit at a worse price than you'd get on the regular three-way line that includes a draw.
What is a Draw No Bet? Draw no bet means you wager on one team to win a match, but your stake is refunded if it ends in a draw. This market works as insurance in case your bet does not come in. However, if you back one team and they lose the match, then you lose your stake.