Dactyl is a fancy word that poets use to describe a certain type of rhythm in their writing. It's like when you clap your hands to a beat - sometimes the beat goes very fast and sometimes it goes slower.
In dactyl, the rhythm goes like this: one long beat, followed by two short beats. It's like saying "DEL-i-cious" or "PUF-fer-fish". See how the first syllable is long and the next two are short?
Poets use dactyl when they want their words to sound like they are galloping or running quickly. It's a fun way to make their writing sound exciting and energetic, like a horse running through a field or a superhero saving the day.
So, next time you hear someone say "dactyl", you can think of it as a special beat in poetry that makes the words sound like they are running or galloping.