金きん玉たま袋ぶくろ

noun

scrotum; ball sack

Colloquial, somewhat vulgar term for the scrotum. Used in informal, often male-oriented conversation.

• サッカーボールが金きん玉たま袋ぶくろに当あたって、しばらく動うごけなかった。

  The soccer ball hit my balls and I couldn't move for a while.