| Idiom | Meaning | Example | 
| a ghost of a chance | 
a poor chance, not likely to happen
 | 
That car doesn't have a ghost  of a chance. It's too slow!
 | 
| a glow on | 
slightly drunk, tipsy, catch a buzz
 | 
When Myrna gets a glow on, she likes to dance real close.
 | 
| a go | 
(See it's a go)
 | 
 | 
| a go-getter | 
an aggressive employee, a hard worker, gung ho
 | 
What a go-getter! He finished the course a month before the others.
 | 
| a going concern, | 
a busy person, an active enterprise, going great guns
 | 
At three years of age she was a going concern - into everything!
 | 
| a golden opportunity | 
a good chance to succeed, a good investment
 | 
The Royal Hotel is for sale. What a golden opportunity!
 | 
| a goner | 
something that is lost or beyond help
 | 
I thought he was a goner, but the cat came back. He's home.
 | 
| a good arm | 
the ability to throw a baseball or football
 | 
Doug is short, but he has a good arm. He's an excellent passer.
 | 
| a good egg | 
a good-natured person,  a good head
 | 
Everybody likes Marsha.  She's a good egg.
 | 
| a good head | 
friendly, generous person; a good egg
 | 
Sean is a good head. He'll help at the food bank.
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