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he spies on colleagues, junior and bosses. he listens in on bathroom chats, telephone conversations, reads the mail on your desk, and checks your garbage. he gets you drunk and encourages you to make deep, dirty confessions, such as the pass your boss's wife made on him when he was carrying her shopping bags. he spills the beans when the right opportunity of self- advancement steals upon him, and dunks your head into the purgatory of perfidy.
Lucy: I smell a rat, is Luke around? For he, truly, is anointed the office rat!
by manjeet sg June 06, 2015
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Someone who spends way, way too long in the office, and in rare cases, even sometimes attempts living in their office.
Nick was a real office rat. I tried getting him to quit, but he just kept on doing work at his computer every night, after hours.
by NinjaChicken666 August 30, 2018
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