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used to replace "seriously"

originates from the movie Serial Slayer
"I cant believe she made out with that guy"

"I know! Serial slayer"
by lwindy February 18, 2008
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2
A man who has sex with quite a few women in a short period of time. Usually back to back
Mna Jim is a real Serial Slayer
by The Captain Of All December 13, 2007
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