the defintion of "to jizz in the shizz" is a phrase which means to have anal sex. Sex in the anal hole or in the booty
To jizz in the shizz you must have anal sex.
Example: Oh man! Karen was so hot yesterday, i jizzed i her shizz, right before she took the kids. It was so great.

Example: Man, i want to jizz in her shizz so bad.
by TheSaggiestOfTits January 18, 2019
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