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A cocktail that is half lemonade, half iced tea, poured over an undetermined amount of vodka.
Man, I really need a Dirty Arnold, it will put me right to bed.
by Champ (Scooter) September 15, 2008
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2
When you shit in your hand and then wipe it on someone's ear.
He fell asleep with his shoes on and woke up with a dirty arnold.
by Wlecompte August 29, 2017
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