A male who dates a younger women. The age difference may range from anything that is considered creepy. It may be a guy who could be the father if the person he is dating. It may be a guy who is a senior in school dating a freshman.
For example, Did you hear about Anderson? He's dating this girl that is less than a third of his age. What a Manther.

Ew, is that a senior dating a freshman? Isn't he leaving the school this year, and the girl is entering? Creep. Such a Manther.
by Creeped-out January 22, 2010
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An older man who chases younger women. Wears open shirts, necklaces, drives Corvettes or any T-Top vechile.
That douche in the Iroc is cruising the cherrleaders, such a manther
by cpooldog September 7, 2011
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A manther is a woman in her sexual prime who likes older men.

A FEMALE, but the opposite of a Cougar. Cougars like younger men, Manthers like older guys.

Why play with a monkey when you can get rocked by a silverback gorilla?
Yeah, most of my friends are Cougars, but I'm a Manther... there is nothing sexier than a little bit of grey hair.

Do you know why I'm a Manther? To be very blunt ... Because a little bit of grey hair on a man says to me "yes I can eat pussy". I prefer experience to a young buck any day.
by moodyeva January 11, 2010
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Adam living in Toronto, Canada and working as an Investment Banking is half Man, half Panther. This is proven by studies completed on Adam by scientists at the University of Toronto.

Adam is a wealthy, young, and handsome man with the brightest of futures with a very dark past. From Africa’s deepest recesses, to the rarest peaks of Tibet, heir to his father’s legacy, and the world’s darkest mysteries is Adam, master of the secrets that divide man from panther, panther from man, Manther.
by Wild Tiger April 27, 2007
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When one puts one’s arms around their significant other with a complete 90 degree lock of the arms and without actually touching them in an awkward and uncomfortable fashion
I heard lucas pulled a Manther Maneuver on lia. they didn’t go out after that
by Dongmaster1106 November 1, 2017
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a guy who’s already graduated high school but still hits on underaged girls
oh my homie graduated 3 years ago but he’s dating a girl still in high school, he’s a micro manther
by yamazar December 27, 2021
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A manther, thus being a male version of a cougar, that has aged to the point of obtaining a snowy white coat. This covering allows the snow manther to disguise easily when in search of much, much younger prey. The snow manther has an evolutionary advantage when stalking prey in winter.
That Bob Barker is such a snow manther!

I was kind of turned on by that snow manther until he shit himself and his dentures fell out.
by Tony Perkis September 9, 2009
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