Term generally used used to show appreciation to someone after they have done a deed for you.

It can also be used as a sarcastic way of saying "thank you" to someone after they have done something that you don't like, or that inconviences you in anyway.
Example 1:

Mike: Here goes that five bucks I owed you from yesterday.

Chris: Appreiciate you.

Example 2:

Sara: Matt, I think I gave you herpes.

Matt: Thanks a alot bitch. Appreciate you.
by Mr. Gaines February 14, 2012
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“I appreciate you” is a polite of way of expressing your disgust with a particular object, situation or person. When utilized in this format, you leave the subject of your statement wondering why you were so polite when in reality you were simply telling them to fu*k off.
Boss: "What's wrong with you? Your results are horrible." Employee: "Thank you, I appreciate you."

Unkind Person: "You wear a 4x shirt, seriously?" Victim: 'Yes I do, I have a gland problem. I appreciate you."
by RetailWorld October 18, 2010
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