1)What a pitcher and his catcher are referred to in baseball.

2)Two people who are dating or married, who argue a lot and always turn to physical violence toward each other as the arguments escalate.
1)Mark Buehrle and AJ Pierzynski have been battery mates since 2005.

2)Jim and Paula were both arrested after a neighbor heard them fighting and screaming and called the police. Both were charged with domestic violence against each other.
by Tex-Mex Shawn C. November 23, 2010
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