A home run or round tripper, a combination of "Go four" as in the number of bases you round on a home run.
The pitcher threw too many gopher balls and was taken out of the game.
by Josie Becker March 26, 2007
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As in "go for" ball, used in baseball to refer to a pitch hit for a homerun.
Don't throw a hanging curve with a 2-0 count...gopher ball for sure.
by Fox Horn May 5, 2005
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