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German Vacuum

Licking a girl's ass while her legs are on my shoulder and she is sucking/cleaning the floor with her mouth
I took my girl to the basement and did the German vacuum to clean it.
by German128 October 6, 2025
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California Vacuum Cleaner

A sex position where a Male is riding another male reverse cowgirl style, but the bottom male is bent forward and sucking on the top males penis as it is coming up and down
Yo! Wanna do a California vacuum cleaner at my place tonight?
by 3/4TonForYaMomma May 28, 2025
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Grifting Vacuum

A situation where a new controversy creates a temporary void of reliable information; allowing grifters to use this as an opportunity to grift or exploit outrage.
The Critical Drinker took advantage of the grifting vacuum made from the controversy of the Peacemaker episode 'Full Nelson' by making a video on how the DCU is falling apart.
by David X. Hatley October 17, 2025
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Quantum Vacuum Technologies

Tech that exploits the properties of the quantum vacuum—not empty nothingness, but a seething sea of "zero-point energy" where virtual particle pairs constantly pop in and out of existence. These technologies aim to extract energy, create propulsion, or manipulate forces by interacting with this underlying energetic activity of supposedly empty space.
Example: The hypothetical "Casimir engine." By using incredibly precise nanoscale plates, you harness the quantum vacuum pressure. Virtual particles of certain wavelengths can't fit between the plates, creating a net pressure from the more energetic vacuum outside that pushes them together. A cyclic engine could theoretically convert this push into usable work, literally getting power from the restless activity of nothingness. Quantum Vacuum Technologies.
by Dumuabzu January 24, 2026
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Quantum Vacuum Engineering

The active manipulation of the quantum vacuum's state and properties on a macroscopic scale. This goes beyond tapping its energy; it's about "programming" the vacuum in a region of space, altering its ground state or the rules by which virtual particles fluctuate. Think of it as rewriting the local operating system of reality to change fundamental constants or enable exotic phenomena.
Example: Creating a "Klein Barrier" around a ship—a region of engineered vacuum where the probability of electron-positron pair production is suppressed. This would render the region virtually impervious to certain high-energy radiation, as the particles carrying that radiation would be unable to manifest from the vacuum near the hull. You're not adding armor; you're reprogramming the empty space itself to be hostile to incoming energy. Quantum Vacuum Engineering.
by Dumuabzu January 24, 2026
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Tech that merges the concepts of spacetime geometry and quantum vacuum energy. It treats the vacuum not just as an energetic sea, but as a geometric entity whose curvature and energy density are linked (as in General Relativity's cosmology constant). These technologies would seek to harvest energy or influence gravity by manipulating this spacetime-vacuum relationship.
Example: A "Lambda Cell," a power source that creates a controlled, microscopic region of altered spacetime curvature (like a tiny, engineered dark energy bubble). The pressure difference between this region's vacuum energy density and the surrounding normal vacuum could be harnessed to do work—literally using engineered, local spacetime expansion as a battery. It's drawing power from the same principle that accelerates the universe's expansion. Spacetime Vacuum Technologies.
by Dumuabzu January 24, 2026
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Spacetime Vacuum Engineering

The pinnacle of speculative physics engineering: the deliberate, large-scale design and fabrication of a stable "vacuum state" with desired spacetime properties. This isn't just tweaking parameters; it's about triggering a phase transition in a region of the universe, creating a new, stable patch of reality with different fundamental laws (like a different speed of light or strength of gravity) for specific ultra-technology.
Example: Creating a "Causal Dock" for starships. Within the dock, engineers have induced a local vacuum state where the speed of light is artificially raised by several orders of magnitude. This doesn't allow FTL travel out into normal space, but within the dock, computers can operate at near-infinite speeds, allowing for instantaneous repair simulations, crew training in subjective millennia, and ship system diagnostics that are complete in an external picosecond. Spacetime Vacuum Engineering.
by Dumuabzu January 24, 2026
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