Top Definition
1). A pokeball that can catch any pokemon
2). a rock you can throw at people
"i threw a master ball at his head and it started 2 bleed"
by Chewieporrage January 19, 2009
1 more definition
While in intercourse the woman will queef on the man's ballsack. After she has to suck it off.
That hooker gave me a masterball
by WyattC July 30, 2014

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