הִשְׁחִית זַרְעוֹ לְבַטָּלָה (הַשְׁחָתַת זֶרַע)

ביטוי (אנגלית)

He spoiled his seed to no purpose (spoilage of seed)

הגדרה (אנגלית)

Figuratively by metaphor: Onan.

("And Onan knew that the seed would not be with him, and it would be if he went in to his brother's wife and defiled the ground, to give seed to his brother" - Genesis 8:9)