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1.
A guy that shoots a big load when he cums
I had to apologize last night for the mess I made, after the huge wad of cum I shot,went over my head and hit the headboard several times. My friend said,"That's OK,your a big shooter...I like that."
by Big Shooter October 03, 2007
 
2.
The big shooter is someone who is hung like a horse.
James with a jackhammer that size, you are the big shooter.
by Blaster March 24, 2005