English Slang collection：

big potato

[釋] people very high up in the industry's hierarchy;

[例] Some big potatoes will stop by our company for a visit, so please act like a profession.;

big shot=big cheese

[釋] an important person;

[例] I hate the attitude of the big shots.

Big Smoke

[釋] a large city, especially a capital city;

[例] Are you going to the Big Smoke this weekend?;

big stink

[釋] a large commotion;

[例] Don't make a big stink over such trifles.;

big time

[釋] great time;

[例] I had a real big time last night.

big time

[釋] great success;

[例] If you want to move up into the big time, you're gonna have to create a character of your own.;

big whoop

[釋] a big deal

[釋] My life is in complete shambles, but its no big whoop.;

bio break

[釋] a bathroom break.