English Slang Collection：

　　good luck with that

　　[释] statement used to express doubt in the future success of sb's plan;

　　[例]A: You know, Jane's gonna play baseball. B: Well, good luck with that.;

　　Good on you

　　[释] congratulations;

　　[例] A: I got my offer from UCLA. B: Good on you.

　　good looking out

　　[释] the act of watching out for someone in his best interest;

　　[例] A: I took notes for you when you were out. B: Thanks bro. Good looking out!;

　　good samaritan

　　[释] a person who helps others;

　　[例] Thanks a lot. You're a good samaritan.

　　good egg

　　[释] a good person;

　　[例] Thanks for buying me lunch; you are a good egg.;

　　good one

　　[释] something well done;

　　[例] A: I passed all my finals. B: Wow... good one.;

　　good sport

　　[释] easy-going, agreeable;

　　[例] Come on, be a good sport and help me.