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1.
1. Nuts Blossom: after sex and the nut sack (nugget pouch, balls, huevos, etc.) begins to un-shrink; the act of testicles regaining size.

2. Nuts Blossom: You cum once and you think it is over and then all at once your "nuts blossom" and more and more comes out.
Dude, I let my nuts blossom on your mom last night.
by J Muny March 15, 2007