Grab a bite (to eat)
To get something to eat.We stopped at a small restaurant to grab a bite to eat.
Goof up
To make a mistake, to perform badly.The boy goofed up during his performance.
Goof off
To waste time, to fool around, to not work or be serious.The boy has been goofing off all afternoon and has not done any work.
Good together
To be able to get along well with each other.The couple are good together and nobody has ever seen them argue.
Gone with the wind
To be gone.The woman is gone with the wind and we will probably never see her again.
Gone to meet one’s maker
To be dead.The car accident was terrible and the driver has gone to meet his maker.
Gone but not forgotten
To be gone or dead but still remembered.Our grandfather is gone but not forgotten.
Gyp (someone) out of (something)
To cheat someone.The woman at the store gypped the man out of some money.
Gung-ho
To be enthusiastic, to be full of eagerness.My friend is gung-ho about her new job at the library.
Gun for (something)
To try very hard to get a prize or promotion etc..I have been gunning for the sales job for a long time.