ultimate sperm
A condition where every time a male has sexual intercourse with a female he impregnates her.
High schooler 1: HOLY SHIT! ZACH IMPREGNATED ANOTHER GIRL!
High schooler 2: Wow that's the 15th time in the past 3 years! That guy must have ultimate sperm.
High schooler 2: Wow that's the 15th time in the past 3 years! That guy must have ultimate sperm.