Bug
A flaw in a system that produces incorrect or unexpected behavior.
Origin
Engineers used 'bug' for hardware faults from the 19th century โ Edison's 1878 letters complain about them. The famous moth-in-a-relay incident at Harvard in 1947, logged in Grace Hopper's notebook with the moth taped in and the note 'first actual case of bug being found', cemented the modern usage and the myth that she coined it (she didn't, but she popularized it).
Modern usage
Standard everywhere. 'A bug in the plan', 'a bug in the code', 'a bug in the relationship'. Distinguished from a 'feature' even in non-software contexts.
Tags
Related
Computers & Internet
Reboot
To start something over from scratch โ a system, a franchise, a career, a relationship.
Computers & Internet
Blue Screen of Death
A catastrophic, unrecoverable failure.
Computers & Internet
Hack
A clever workaround โ once for computers, now for laundry, parenting, sleep, and everything in between.