ENGLISH
REFERENCE

doo

interj. · n.
US //ˈdu// doo
  1. 1 singing sound (interj.)
    B2 Upper Intermediate Music

    a sound used in music when the singer uses nonsense syllables instead of words.

    a nonsense syllable used in scat singing or vocal jazz to mimic the sound of an instrument.

    Example

    The backup singers sang 'doo-doo-doo' behind the lead vocalist.

    Example

    The arrangement required the vocalists to perform a series of complex 'doo' syllables to emulate a walking bass line.
  2. 2 waste (n.)
    B2 Upper Intermediate Informal

    a childish word for solid waste from the body, especially from a dog.

    a juvenile or euphemistic term for excrement, most frequently applied to domestic animals.

    Example

    Watch out so you don't step in the dog doo on the grass.

    Example

    The park's new signage reminds owners that failing to clear up dog doo will result in a significant fine.
Etymology 1

1950s, from child speak.

Etymology 2

Clipping of Skidoo.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Last updated June 20, 2026