A person content with their Obesity. Someone who has acknowledged they are in fact obese and is proud of it. Similar to old money and new money. Antonym of New Fat.
That dude with the Fedora, neck beard, and sweat pants eating McDonalds by himself is def old fat.
by bbuehl792 October 27, 2015
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An old maishna who is extremely unattractive.
*Random old man comes in and begins to dance*
"Oh my God, old fat"
by Eric, Stephanie, and Amanda September 30, 2006
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Dude, Carol wants some of that double penetration action, so let me know when you and the old horse fat are around.
by Jungle VIP November 22, 2008
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A lawyer named Patrick Smith infamously invited one of his friends to bring his "old horse fat" over to have a three-way with his girlfriend. The email was forwarded all over.

Source: http://www.cracked.com/article_16690_p2.html
"Dude, "Carol" (not her real name) wants some of that double penetration action, so let me know when you and the old horse fat are around."
by patricksmith January 25, 2009
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British slang for "dick" or "penis," most popularly used in a work email written by an international law firm lawyer Patrick Smith (now fired).
Smith in email: "Dude, 'Carol' (not her real name) wants some of that double penetration action, so let me know when you and the old horse fat are around."
by AT Hill October 14, 2008
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Yo William Carol wants some of that double penetration, so bring that old horse fat and lets do this.
by El pene de muerte October 14, 2008
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