积贼

积贼	jī zéi	confirmed thief
积	jī	to amass; to accumulate; to store up / (math.) product (the result of multiplication) / (TCM) constipation; indigestion
贼	zéi	thief; robber / (bound form) traitor; subversive / (bound form) evil; wicked / sly; shifty; devious / (literary) to harm; to injure / (coll.) extremely; insanely; damn (common in NE China and Taiwan)