Here's why:
* It's the past tense of "slay." While "slay" is a verb, it's often used in a figurative way, especially in slang.
* Figurative meaning: "Slayed" is often used to express that someone did something exceptionally well, especially in a performance or in fashion.
* Formal context: In formal writing, "slayed" might be considered too casual. You'd likely use a more formal synonym like "excelled" or "impressed."
Examples:
* Informal: "She absolutely slayed that presentation!"
* Formal: "She performed exceptionally well during her presentation."
So, while "slayed" is grammatically correct, it's best to be mindful of the context and audience when using it.