also: えんやこりゃ
interjection
heave-ho!; one-two-three heave!
A rhythmic chant used when lifting or pulling something heavy together, similar to 'heave-ho' in English.
みんなで「えんやこら」と声を合わせて、重い岩を動かした。
Everyone chanted 'heave-ho!' together and moved the heavy rock.