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Usually referred to as Monster Energy Drinks. Bull sperm makes you crazy and wild like Latin bull.
Rico:"Dude...what are you drinking?"
Jessy:"A monster...ahh...I just spilled spilled some up my nose!"
Rico:"Haha...now you have bull sperm in your nose!"
by ManOfCars June 18, 2009
lindsay doesnt like bull sperm very much.
by aaron January 22, 2004
its the cooler way to say Bull Sh**!
Thats a bunch of BULL SPERM I did not sleep with your mom last night it was your Grandma thank you!
by Lindsay January 22, 2004