TOIL, time off in lieu, is the British and Australian arrangement where extra hours worked are banked and taken back later as leave instead of overtime pay. The event ran over on Saturday; you take Friday off in exchange.
TOIL works when it is recorded and expires sensibly; it curdles when banked hours accumulate untracked in people’s memories or spreadsheets. American workplaces largely use comp time for the same idea, with its own legal constraints for non-exempt staff.