Slam dunk is a term that is often used in basketball to describe a particularly impressive shot. However, if you're looking for different ways to express the same idea, there are plenty of options. You could say something was a "perfect shot," a "stellar move," or even a "home run." Alternatively, if you want to get more specific, you might describe something as a "powerful dunk" or a "majestic layup." Ultimately, the key to finding the right synonym for slam dunk is to consider the context of the situation and think about what specific characteristics you want to highlight.