どっこい
ど
っ
こ
い
Meanings
1
A rhythmic chant used when lifting or pulling something heavy together, similar to 'heave-ho'.
Everyone moved the big rock while chanting 'heave-ho, heave-ho'.
2
hold on!; just a minute!
Used to tell someone to wait or pause briefly, often in casual speech.
Hold on, the story isn't over yet.
3
la-la (meaningless song syllable)
A filler syllable used in songs for rhythm, without specific meaning.
In that children's song, 'dokkoi' is used to keep the rhythm.