JERK KANJI have 2 (or more!) unrelated, yet commonly used, meanings.
Some classic JERKS are: 沢 (swamp / bling) and 討(strike down / discuss) and we can’t forget 米 (rice / America). I think this is one of the classic, "Only-in-Japanese" problems that drives people up the wall, so I made a label for it to let you know: be careful, you’re up against a JERK today!
KANJIDAMAGE