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2.
The unhealthy admiration a man exhibits when referring to the achievements of his favorite sports figure.
"Unaware of my own manfatuation, I found myself marveling at Kelly Slater's naked competitiveness."
by KR Smith March 27, 2008
 
1.
An unhealthy obsession with another man, bordering on homosexuality, characterized by sporadic mantasies and insistence on regular mandates.
M1: Do you think its odd that Tim is always with Eric? They eat together, watch tv together, study together and even go out together, and he just put up a life size poster of the two of them in his room.
M2: Yeah, sounds like its bordering on manfatuation to me...
by bkmaet August 25, 2010