Final answer:
The phrase 'up the bid and multiply, down the ask and divide' is a trading strategy in the stock market.
Step-by-step explanation:
In the context of trading, 'up the bid and multiply, down the ask and divide' refers to a trading strategy used in the stock market.
When placing a bid to buy stocks, traders increase the bid price and multiply the quantity they want to buy.
On the other hand, when placing an ask to sell stocks, traders decrease the ask price and divide the quantity they want to sell.