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A type of prank calling which originated within a small communtity of phreakers called the Phone Losers Of America. The point is to tie the word "cactus" into the prank call as many times as possible without sounding like a prank call.
Murd0c is planning on cactusing this catholic suicide hotline later.
by Sparx March 19, 2005
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masturbation at its finest. With or wittout artifical lube.
Jim likes to use astroglide while cactusing
by Hugh G. Balls February 11, 2003
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When you have a technical problem and you ask for help from someone and they just stand there while you show the problem and miraculously, it works even though it didn't seconds ago.
Well, it works now. Thanks for cactusing for me, I guess...
by johnseelewis October 31, 2015
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