Smashed The Granny means: A male has done a vigorous, enthusiastic pounding on a female consenting partner. The practice can cause internal injuries and leave the subject paralysed for days. You don’t have to fuss about smashing the granny. You can smash the granny out of any of the main orifices, even the more popular and less effective belly button smashing that is reserved for women of greater volume. (in Community Dictionary, added by Finn Hubbard)
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