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1.
The act of a larger women slapping your dick with her tits
damn dude i heard you got bertha slapped yesterday
by Yeahhhh Biiiidddddd November 19, 2010
 
2.
the act of a big girl slapping her tits on your dick.
awwwww big bertha just bertha-slapped me!
by PHSFALCON November 18, 2010