Verb that expresses the concept that the act of talking about a phenomenon changes the phenomenon. For example, if you see a squirrel come within 5 feet of where you are sitting, and you attempt to alert your companions, the act of alerting them will scare off the squirrel.

Taken from Heisenberg's Uncertainty Principle, which holds that it is not possible to know with certainty both the position and the momentum of a particle. The act of measuring either variable changes the other.
Dude, I would have shown you the squirrel, but I was afraid that I would have heisenberged it.
by maryfield January 26, 2006
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The last great German airship of the 1930's. It crashed because they could say where it was, or how fast it was going, but never both at the same time........

A Physicist's joke, based on a combination of Heisenberg's Uncertainty Principle and the German airship Hindenburg.
"He's had three beers at lunchtime and now he's wandering round the office like the Heisenberg."
by eighthofseven October 23, 2007
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verb (frequently with -"up")

To unintentionally change the observable characteristics of something, by the actions performed to make an observation. Derived from the Heisenberg Uncertainty Principle.
Design Engineer: "Why did you report that my board's 12v rail drops out under such a low current load? My rail does NOT sag when the board is installed in any of our products. How are you testing this?"

Test Engineer: "I'm using a huge giant solenoid to make/break the cooling fan's power contact, that's the only way to override the software's fan control. Since it's a 12v solenoid, I figured I'd just source its current from the board. All I gotta do is turn on the fan, and your board eats shit. It's a tiny little fan, why did you use such a pussy-ass voltage regulator?

Design engineer: "The fan isn't doing this, dumb shit. It's you, Heisenberging up my board with your solenoid. Find your own power supply for your horseshit test setup, better yet find me a real test engineer."
by spider kidzs January 4, 2022
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When you decide to manufacture methamphetamine due to the way your crappy life is headed.
Jeremy thought he would pull a Heisenberg.
by hhhhhhfhgg December 23, 2012
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The 2nd hottest person in RE8.
Karl Heisenberg is hot but Alcina Dimitrescu is hotter.
Alcina Dimitrescu-Lady Dimitrescu
Karl Heisenberg-Heisenberg
by Re8 simp June 23, 2021
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On this day, in New Mexico, Heisenberg Day is celebrated. Every family has to cook blue meth and the challenge is to make it as pure as possible.
Happy Heisenberg Day.
by AndreKakka April 6, 2022
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