q.e.d.

actually is "Quad Erat Demonstrandum" and it does mean "which was demonstrated".
Comes at the end of a mathematical proof, usually.
Maddox uses it best.

Pirate: "I claim that illegal immigrants should be paid the same wage as americans, you claim you dont want any 'spics, gooks, nips, russians' and lets not forget 'sand niggers' to 'take our jobs for less money' because they 'dont belong here'. Also you said i could 'like your balls'."
Pirate: "Wooo WOOO. Here comes the clue train, last stop is you! Now if companies like Wal-Mart are forced to pay the same wage to illegal immigrants, then any incentives these companies would have had to hire illegal immigrants if effectively destroyed."
KKK member: "Ah, i see. Will you still lick my balls?"

Q.E.D., bitch.

by gravedigga November 3, 2005

Q.E.D.

Certainly an abbreviation of quod erat demonstrandum but after watching, suffering through, proving thousands of proofs, a math major might just say Quite Easily Done.

The final line of many proofs of the Pythagorean Theorem.

a squared + b squared = c squared

Q.E.D.

by MoHare April 30, 2008

q.e.d.

A term mathematicians like to use which literally translates as Qualified Ejaculate Dispenser, where those who have come up with an equal or better theory or postulate can join you in the lab for a celebratory circle jerk. In the film "A Beautiful Mind" this event was replaced with the scene where the other faculty members giving John Nash their pen, some after having the pen in their mouths.

Einstein was very lonely at his Q.E.D. celebrations.

by The greasy panties of John McCain February 19, 2008

Q.E.D.

Abbreviation of Latin 'Quod Erat Demonstrandum' meaning 'Which was to be demonstrated'. When doing your geometry exam at St Custard's, you might be required to prove that the square on the hypotenuse is equal to the square on the other two sides. When you think you have given the required proof, you put at the end Q.E.D. In other words. 'That's what you asked me to prove, and I've proved it.'

You asked me to prove the existence of God. God is defined as self-existing, that is, not caused. Everything that exists must be the effect of a cause but the first cause of all other effects cannot by definition be the result of a previous cause. That first cause is therefore God. Q.E.D.

by richelxxx April 30, 2008

Q.E.D.

Abbreviation of Latin 'Quod Erat Demonstrandum' meaning 'Which was to be demonstrated'. When doing your geometry exam at St Custard's, you might be required to prove that the square on the hypotenuse is equal to the square on the other two sides. When you think you have given the required proof, you put at the end Q.E.D. In other words. 'That's what you asked me to prove, and I've proved it.'

You asked me to prove the existence of God. God is defined as self-existing, that is, not caused. Everything that exists must be the effect of a cause but the first cause of all other effects cannot by definition be the result of a previous cause. That first cause is therefore God. Q.E.D.

by richelxxx May 1, 2008

q.e.d.

Quit Eating Dick (also see latin " quod erat demonstrandum"), can not be used in reference to a female.

jeremy, q.e.d.

by bigboyben November 14, 2010

Q.E.D.

QED is quantum Electro dynamics. Originally discovered by Richard Feynman. QED is the theory of electrodynamics. To simplify, it shows how light and matter interact

Feynman won a nobel peace prize for discovering Q.E.D.

by Quantum Electro Dynamics December 18, 2015