a. The act of a rockstar sliding accross the stage on his/her knees. (Usually accompanied by a powerful scream)

b. The single most powerful weapon in any rocker's arsenal.
Dude, check out that massive powerslide! He totally rocked that stage!

Damn Frederick, that powerslide was the pinnacle of that rockshow performance.

Person one: What can we do to make our band better?
Person two: Bust out the power slide. It's the single most powerful weapon in any rocker's arsenal.
Person one: Yea man, this is why we keep you in the band!
by IrishCreem November 21, 2006
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When driving a vehicle at high speed, pull the emergency brake and turn the wheel to the left or right. you have now performed a power slide.
Im going to power slide down the block.
by djtone210 March 2, 2010
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When a rock star like William Hung becomes erect and then, with a running start, slides 10-15 feet across the ground on his knees and is stopped only upon impact of inserting his penis into a choice orifice of girl/groupie bent over on her hands and knees.
My favorite scene in the movie Rock Star was when Mark Whalberg used that kid's slip n slide to power slide into Jennifer Aniston.
by azncutie1994 April 3, 2013
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A sexual act in which two men start by anus scissoring, but then slide in synchronization in a clockwise motion so that major penis-to-anus penetration occurs.
Rob, being the chief, ordered butt-pirate Andy to rusty scissor power slide JP. They thoroughly enjoyed it as Rob video taped the whole thing.
by Wordupbrah June 22, 2011
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