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An act that is unhygienic, in poor taste, cheap, or blatantly disloyal. A Synonym for nasty or tacky. For instance, getting dressed to go to $2 Tuesdays without taking a shower since Saturday is trifiling. Bringing Lime-A-Rita's to a BYOB is trifilin'. Paying your barber in laundry tokens and scratch-off lottery tickets is trifiling. Getting your dad's dad's side piece knocked up is all kinds of trifilin'.
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