Disbelieving response to an attempt to mislead, equivalent to: "pull the wool over my eyes"
You tell me that you've worked as an airline pilot and a surgeon, too? Go on ... you'd piss on my leg, and tell me it's raining.
by ursamel June 24, 2007
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Another way of saying, "I understand" or "I already know."
(patiently listens to a broken man's pitiful, self-depreciating speech)

My Response: "You don't have to tell me twice and I'm okay with it as long as you stay away from my sis. P.S., Jesus loves you and everyone else thinks you're an idiot."
by ms.understood September 17, 2013
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A secondhand account of complaint, usually from a person of authority, or by someone who's the teacher's pet (if at school). A sentence of doom. Can happen if you've been sexually harrassing the teacher's daughter, sticking aluminum foil into electrical outlets, shoplifting, etc.
"Someone tells me you've been putting foil in the outlets at school. If you don't respect electicity, I can't let you have electronics in your room." "Someone tells me you've been mooning the principal. Don't you know you can get arrested for that?"
by Braveheart's thirst for blood January 13, 2007
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Don't hurt me and then pretend like you had nothing to do with it.
You argued, privately, to each member of the committee that I should be fired and now you come by on my last day to tell me how sorry you are about what "happened." Don't piss on my leg and tell me it's raining.
by wouldaben January 14, 2011
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To tell a fabrication in such a way as to be ridiculously transparent; misleading; doing one thing, and purposely mislabeling it; bold face liar
Don't pretend that's as low as the price gets,I know the blue book value of that car, and its about three thousand less than what you want, so don't piss on my foot and tell me its raining! or I saw you kiss her, thats not how cousins kiss, so don't piss on my foot and tell me its raining!
by Sabrina Burton August 10, 2006
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