English Slang collection：

　　cougar

　　[释] a middle-aged woman who seeks out much younger men for romance or physical intimacy;

　　cough up

　　[释] to give money to pay for something especially when you would prefer not to;

　　[例] With no insurance, he had to cough up for the medical bills.

　　country bumpkin

　　[释] a person, usually from a rural area (有嘲笑意味);

　　[例] She grew up in the south, so she's a bit of a country-bumpkin.;

　　cover one's ass

　　[释] to protect oneself in anticipation of a hazard;

　　[例] Cover your ass. It ain't pretty ahead.

　　cowboy killer

　　[释] to describe a hard packed, or very harsh cigarette;

　　[例] A: Do you want a smoke? B: Woah no thanks, don't smoke the cowboy killers.;

　　cowboy up

　　[释] to face a daunting task, as a brave cowboy would.;

　　[例] Cowboy up! You can make it.

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