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1. Someone who believes that everyone is out to have sex with them (esp. when it's not true)

2. Someone who believes that everyone is out to have sex with someone else they know, such as their girlfriend/boyfriend. (also esp. when it's not true)
1. That girl is so sexanoid, no one in their right mind would touch her!

2. Guy: Why do other guys keep looking at you, they can see you're with me! Girl: You're just sexanoid!
by Stooone@live March 11, 2009
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