n. A middle-aged man who seeks sexual or romantic relationships with significantly younger women.
2011
Now the Cougars have more than 20 members, including two males who have been dubbed Manthers (aka male panthers), but they’d like more, to expand their fundraising strength.
2011
Undulating vineyards, juicy weather, lingering melodies and memories, charming people (cougars and manthers will be in attendance — caveat emptor).
2004 (earliest)
manther: A male cougar. Single, usually divorced, and at a minimum 10 years older than a cougar.