to avoid doing something that you were planning to do
My friend copped out from our plan to go to to the beach for the day.
Rules to play Bank pool
Safeties are allowed in Bank Pool, however, the standard World rules 3.19 apply. After the cue ball contacts at least one object ball, the shooter must either pocket a ball or cause the cue ball or at least one object ball to contact a cushion. There is no penalty for directly or indirectly pocketing an object ball. Pocketing any ball other than a legal called bank does not entitle the shooting player to continue their inning.