えっちらおっちら
ecchiraocchira

Adverb

1. with a great deal of effort; laboriously

上司 じょうしにやれと われた仕事 しごとをエッチラオッチラやっています。
jōshini yareto iwareta shigotō ecchiraocchira yatte imasu.
My supervisor is making me do this so I'm in no hurry to finish.