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1.
A Combination of the words balls, and testicles, meaning the same thing.
"Don't kick me in the ballsticles!!"
by Billy-Bob-Joe Jr. January 21, 2009
 
2.
Used as a term of frustration or ridicule in place of Bollocks or F***.
Ah Ballsticles! Or Thats just Ballsticles
by HawaFu December 26, 2009