An adverb meaning 'often' or 'frequently' (colloquial).
彼はちょいちょい遅刻するから注意したほうがいい。
He often arrives late, so you should warn him.
この店にはちょいちょい来るよ。
I come to this shop now and then.
ちょいちょい確認する癖をつけよう。
Get into the habit of checking things frequently.
Describes a light or quick movement (often used as 'choi-choi to').
彼女はテーブルの上の紙をちょいちょいと寄せた。
She nudged the papers on the table aside with a light motion.
猫がちょいちょいとおもちゃをつついた。
The cat poked the toy lightly.
Means 'easily' or 'simply', often implying something can be done without trouble.
その問題はちょいちょい解けた。
That problem was solved easily.
彼はちょいちょいと仕事を片づけてしまう。
He knocks his work off quickly and easily.