Definitions by Shornathon!

Jizz 

This is when an old man tries to secrete seminal fluid, but he is so old that it is only dust.

Grandad just fapped and jizzed everywhere.. quick somebody get the duster.

Jizz by Shornathon! February 11, 2009

Fap

This is when an old man tries to masturbate but he is so old that his erection is still floppy.

Grandad is shaking his flacid penis.. oh wait, he is fapping.

Fap by Shornathon! February 11, 2009