Top definition
A girl whom is in an on and off relationship with a guy. No one knows if they are dating or not except themselves.
"OMG is Sablan and _____ dating yet?"
"I don't think they are"
by pandaxjams August 17, 2017
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Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
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