Top Definition
Similar to Jackson's Mustache and Hamilton's Mustache, Jefferson's Anus is when, the morning after you have sex, but before she wakes up, you cum on the girls asshole and jam a nickel in. This is usually for cab fare. This is only practiced by truly douchey dickbags.
X: Hey man, how did that chick get home?

Douchey Dickbag: I don't know, brah, but I gave her Jefferson's Anus when I got up! Pound it!
by Greene Team July 24, 2011

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