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1.
The act of a male hardcore baseball fan going down on another male to the base of the balls. The term was derived because baseball sucks.
Chris is baseballing at the Ranger's game.
by metallicoolguy June 05, 2009
 
2.
When a lady inserts a finger into the end of a mans penis and a man slips a vibrating mobile phone up the ladies vagina and dials his favourite pizza number
Hey Julie we are going to have to stop all this baseballing my mobile phone bill is through the roof
by dtothepower3 May 24, 2010