to engage into sexual activity with oneself before taking a rest. combination of the words "nap" and "wank" (british english for masturbation)
i was really relaxed after the nank i had this afternoon
by achim brandenburg January 16, 2007
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Adjective: Used in the same manner as many people use "retarded", it refers to a situation, person, or thing that is ill-equipped for life due to an obvious defect.

It is derived from the hypothetical situation in which Frank Sinatra has an affair with his own daughter, Nancy, and they bestow their new inbred love child with the moniker "Nank," a portmanteau of their own names.

This is preferred over "retarded" or "gay" because of its low level of offense to various groups of people (i.e., individuals who actually are mentally challenged or gay). Frank and Nancy might not prefer it, but that's what they get for engaging in fictional incest.
"Jewel's cover of These Boots Are Made for Walkin' was totes nank."

"My anti-Semite grandmother cut me out of her will because my wife's Jewish."
"Man, that's nank."

"I read somewhere that Frank Sinatra had sex with his daughter and the two bore a child together."
"Ew, that's nank."

"That toddler just put toothpaste in his eye."
"Oh, that's Nank."
by Nank Sinatra March 25, 2009
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The opposite of the word "Thanks" which is "No-Thanks" in a shorter, easier way. Usually used as a joke.
John: "Hey man, you want to go grab some Pizza?"
Mark: "Nanks man, I just ate some Tacobell"
Mark: *Farts*
by Crombez240 June 30, 2009
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