Top Definition
1. noun: the whitish fluid produced by the male reproductive organs during ejaculation.
Synonyms: ejaculate.
2. verb: the act of ejaculating semen.
Etymology: possibly from Latin jacere, meaning throw
chiefly British
It seemed like the slippery, sticky jissom was everywhere afterwards. This would turn out to be -- by far -- the most benign of the many consequences he would experience as a result of not using a condom.
by im_the_definer2008 August 10, 2008

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