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Definition funny of Duffing:
Giving oral pleasure after the receipt of an unexpected gift.
Hillary received a beautiful engagement ring. Right after, she was caught on camera duffing her boyfriend on the barcalounger.
The act of living with the bare minimum required to maintain the ultimate bachelor lifestyle. Those "duffing it", often live in an environment that only a true single man could tolerate. Normal living spaces may be converted for storage of motorcycles, beds may not have ever worn sheets, dishes may be piled up waiting for execution via the trash can.
Oh man Bobby is duffing it, he has a guitar stand where his dining table should go.
Farting slow. When you have to let out a fart so bad but you are afraid it will be loud enough for everyone to hear at the DMV, church, or at your boyfriend's or girlfriend's family dinner. So you duff it..you let it out slowly.
"I'm duffing right now and no one even knows!"
Books about Duffing:
The Duffing Equation: Nonlinear Oscillators and their Behaviour by Dr Ivana Kovacic and Michael J. Brennan (Apr 4, 2011)
A Duffing oscillator algorithm to detect the weak chromatographic signal [An article from: Analytica Chimica Acta... by W. Zhang and B.R. Xiang (Feb 28, 2007)
Beitrag Zur Bestimmung Der Formveranderung Gekropfter Kurbelwellen (1906) (German Edition) by Duffing, Georg published... (May 22, 2010)
Application of the Laplace-Borel transformation to the representation of analytical solutions of Duffing's equation... by K. V. Truong
Propagation of ultra-short electromagnetic pulses in a Maxwell-Duffing medium. by Yevgeniy Frenkel (Sep 3, 2011)
Forced oscillations in coupled Duffing equations by an analytical method of varying amplitudes and phase angles... by Rene van Doeren (1972)
Perturbation of homoclinics and subharmonics in Duffing's equation (LCDS report) by Jack K Hale (1982)
Wiki information Duffing:
The Duffing equation, named after Georg Duffing, is a non-linear second-order differential equation used to model certain damped and driven oscillators. The equation is given by where the function x=x is the displacement at time t, is the first...
Cattle raiding is the act of stealing cattle. In Australia, such stealing is often referred to as duffing, and the perpetrator as a duffer. In North America, especially in cowboy culture, cattle theft is dubbed rustling and an individual who engages...