Accumulator
Also known as a "parlay" or "all-up", this is a bet which accumulates across a series of outcomes. The stake and winnings rolling over to be placed on the next bet in the sequence. Each outcome must be a winning bet for the accumulator to continue, if just one loses, then they all lose.
To give an example. Say you bet £10 on something daft like it raining on Monday, snowing on Tuesday and being Sunny on Wednesday. Bet one wins, earning you £15 and your £10 stake is still live. This whole amount (£25) is then automatically placed on bet two, If this wins, then the entire amount of both returns is placed on bet 3. If one, two or three loses, you loose everything. If all win, you get a very nice return for a small stake. (click to edit)
To give an example. Say you bet £10 on something daft like it raining on Monday, snowing on Tuesday and being Sunny on Wednesday. Bet one wins, earning you £15 and your £10 stake is still live. This whole amount (£25) is then automatically placed on bet two, If this wins, then the entire amount of both returns is placed on bet 3. If one, two or three loses, you loose everything. If all win, you get a very nice return for a small stake. (click to edit)