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2 definitions by Chris Kilmer

 
1.
To prevent a female from having consensual sexual intercourse. Analogous to cockblock. Boxblocking is usually committed by other females although males are occasionally guilty. From the slang box.
I can't believe that bitch Martha, trying to hook up with my ex-boyfriend. I am totally going to boxblock her tonight at the club.
by Chris Kilmer January 17, 2005
 
2.
One who prevents a female from engaging in consensual sexual intercourse. Can be a male or female, but usually it is the latter. Analagous to cockblocker. From the slang word box.
Mike was totally about to fuck me, but then Amy had to be a boxblocker and screw it all up.
by Chris Kilmer January 17, 2005