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1 definition by little-bigtop

 
1.
CSR
Cum-Shot Residue:
derived form the acronym GSR which mean Gun-Shot Residue (gun powder left on a person after firing a gun);

the cum left behind on the cock after ejaculation
Damn it, my cock is covered in CSR.
My balls were covered in CSR after fucking her.
by little-bigtop January 16, 2010