English Slang Collection：
good to go
[釋] be ready to do something;
[例] A: Are you guys ready for tonight's debating contest? B: Absolutely! Good to go!;
good word
[釋] good news;
[例] A: After being turned down for 3 times, Mike finally got scholarship. B: It is a good word.
go off the deep end
[釋] to go crazy/angry;
[例] It's only a minor scratch on your car, so no need to go off the deep end.;
go off without a hitch
[釋] to happen without problems;
[例] With helps from every Chinese, the Olympics went off without a hitch.
goof on
[釋] to play tricks on someone;
[例] I'm gonna goof on Peter who's trying to tie his shoes while he's drunk.;
goof up
[釋] to make mistakes;
[例] Don't goof up. This project is too importance. Otherwise, we're all gonna have to find a new job.