spiff
Spiff is a term often used in informal contexts to describe something that has been made neater, cleaner, or more attractive. It can refer to a person, an object, or even a place. For example, a person might get a "spiff" by dressing up in new clothes or getting a haircut. An object might be "spiffed up" by being polished, painted, or otherwise refurbished. A room could be "spiffed" by tidying it, cleaning it, or rearranging the furniture.
The word "spiff" is also used as a verb, meaning to make something spiffy. To spiff up
In some sales contexts, a "spiff" can also refer to an incentive or bonus paid to salespeople