Definitely a financially successful, goal oriented adult woman that knows exactly what she wants and won't settle for less. Young men beware of her physical description: tall, blonde, knock out figure, well dressed and sporting a car you won't be able to afford!!
And if I'm a cougar than that makes my mature male counterpart what???
The modern cougar is any self respecting woman over the age of 35.
by Michelle E August 18, 2006
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A cougar cannot be defined in a simple definition. One cannot consciously seek out a cougar. One can only prepare himself/herself for confirming the positive identity of a cougar by familiarizing himself/herself with the common signs/traits of the cougar. Once one instinctively feels the potential presence of a cougar on the prowl, he/she can fall back on what he/she knows about cougars in general to positively confirm and report a cougar sighting.

Here are the most common signs/traits that your instincts may have accurately identified a cougar nearby:
1. A single woman over 30 appears to be at least 51 months older than she is biologically.
2. A single woman over 30 is talking to your 25 year-old ass about tunes on "Pyromania" and you're able to keep the conversation rolling with your knowledge of "The Vault" and interest in her white high-tops.
3. A single woman over 30 is overheard talking to a group of college men about how she used to date a college guy when she was in 7th grade because the color of his Camaro was the same as her back pocket comb.

So, how does one warn/notify a buddy that he may be talking with a cougar? Whisper into his ear, "Easy cougar, you're doin' fine." (See Top Gun)

Other searches for information on the positive identification of a cougar:
Zoo Cougar
Foggie Benning
Coon Rapids, Minnesota
"Geez, Connor, that gal you were just talking to is only 31 but she looks 43...and look at those high-tops...and that comb!"

"Yeah, I know Dwayne, and she's still single!"

"Connor, she could be cougar."

"Yes Dwayne, yes she is."
by Moondog Rychart December 30, 2004
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A Cougar must fulfill the following requirements:
1. 35 to 50 years old
2. Bleach blonde hair
3. hot pink lips/nail polish
4. desparately seeking younger men to use as she pleases, then dispose of
5. may be seen in packs in bars drinking rose zinfandel
A good example from pop culture would be Stifler's mom from "American Pie".
by Erin August 19, 2003
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A distinguished species of older females who seek the company of younger males whilst avoiding the entanglements of a relationship, in favor of a lack of restrictions.

The cougar woman has overcome society’s proscribed behavior for women’s sexual behavior. Thus, she embraces her true self and lives her life to the fullest. She know what she wants and isn’t afraid to hunt for it!

There are several species of cougars, but an insatiable sexual appetite and a lack of interest in marriage and other conventional romantic institutions are common to all.
Man, check out the Cougar by the bar, she’s like way hotter than your mom.
by PocketChangeNY January 8, 2008
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A hot looking woman in her late 30's to mid 40's who dates younger men because she is still hot enough to get them.
Forty something Cougar Tara dated the hot new intern because she could.
by Cougarette March 15, 2009
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A woman over 40 that still managed to keep her figure, knows how to have multiple orgasms, has a husband that cant keep up with her sexual appetite so she is forced to look for satisfaction among younger men that are more than willing to get her off as many times as she wants. She will give the best head you ever had and you will be begging for me. Her stupid husband is over worked and under paid and in love with his job more than his wife. This forces the cougar to hunt.
by marypopppppp September 30, 2007
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An older plastic looking chick found groaping unsuspecting males at the bar. Usually accompanied by their daughter, and or other cougar friends.
Yo Mike, I shagged that cougar from the bar last night.
by Sammy March 25, 2003
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