A sprat to catch a mackerel British old-fashioned informal
The phrase is often preceded by the verb "set" or "throw".
Used to imply a small expenditure made or a small risk taken in the hope of gaining something bigger or better
The coupon and gift voucher is a sprat to catch a mackerel, which will increase the revenue for the store.
Setting a sprat to catch a mackerel is is an essential strategy in business
Setting a sprat to catch a mackerel, the company has offered a big bonus for whoever hits sales target.
Used to indicate that someone who arrives at some place or do something first will get the most amount of some advantageous quality, resource, or commodity
What's in it for me?
A person who charms other people with their speech to gain benefits.
To make good use of something in a positive way.