Primary meaning "misses", when shooting or aiming at something.
Barona dictionary also lists chuuhwim as "he makes a mistake or misses (while playing peon)"
May be closest 'Iipay word to "makes a mistake, messes up, does it wrong", seeing as it is the equivalent to Tiipay ch'am or chaawam "misses, makes a mistake, loses a game, bet, or object".
Note similarity to pehwim (pechehwiim) "loses something, loses at a game" - this verb is equivalent to perhum, ch'am, and chaawam, which in other dialects mean both "loses something" and "misses (the target)"