Anapestic

An anapestic tetrameter is a particular rhythm in poetry that occurs when there are two unstressed syllables followed by a stressed syllable. Clement Clark Moore's "The Night Before Christmas" is an excellent example of this pattern:

“

'Twas the night before Christmas and all through the house Not a creature was stirring not even a mouse...

”

dit dit dah

An anapestic tetrameter is a type of metrical foot.