English Slang collection：

　　crash and burn

　　[释] to have a spectacular failure;

　　[例] I just asked that woman at the bar for her phone number but I crashed and burned.;

　　crash course

　　[释] a short and intensive training course in sth;

　　[例] I took a crash course in ballroom dancing.

　　crash hot

　　[释] meaning good, great, brilliant, and often used sarcastically meaning the opposite;

　　[例] Wow... Look at that! Your writing isn't too crash hot.;

　　crash out

　　[释] go to sleep;

　　[例] It's been a tough day and I'm burnt out. I'm gonna crash out.

　　cray-cray

　　[释] crazy/off the hook;

　　[例] Damn homie, this party is cray cray!;

　　crazier than a run-over dog

　　[释] very crazy

　　[例] After Joe got back from the prom, he was acting crazier than a run-over dog.;

　　crazy

　　[释] madly good;

　　[例] The party's crazy!