also: こそどろ
noun
sneak thief; petty thief; cat burglar
A thief who operates stealthily, often for small-scale thefts. The term is rare and somewhat colloquial; more common synonyms include こそ泥 (こそどろ) or 空き巣 (あきす) for burglary.
See also: こそ泥
こそこそ泥棒が深夜に店に忍び込んだ。
A sneak thief crept into the shop late at night.
彼はこそこそ泥棒のように振る舞い、誰にも気づかれずに財布を盗んだ。
He acted like a petty thief and stole the wallet without anyone noticing.