Y'all are legit ridic.
I don't mind slang and dumb sayings. I used to be opposed to most of that shit, but I stopped caring and use it to be silly, especially at work. I'm now more against office politics than slang, so I do my part in ruining hope of acceptable office etiquette. Our entire dept's behavior is pretty much uncontrollable, so no point in professionalism now.
To manager: "Ooh got your email o snark. No joke boss, I researched that high tax rate, and it's legit. Totes ridic I know!"
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On multiple occasions now, I've heard my boss say "epic fail" and "fail". We ridiculed her to no end but she cares even less.