English Slang Collection：
gat
[释] gun;
[例] Just get that gat out of my face , and then I'll start telling you everything. I am too nervous to open up my mouth.;
gawk
[释] to stare at someone;
[例] As a celebrity, Mike quite enjoys bing gawked when he shows up in public place.
gazillion
[释] a huge number of something;
[例] Have you heard that a gazillion dollars in scholarship money goes unclaimed every year.;
gearhead
[释] someone is really into cars;
[例] Joe is such a gearhead that he'd spent all his allowance on his car.
gear up
[释] to be ready for something;
[例] Before the race, I need some time on my own to gear up for it.;
geek
[释] any unsociable person obsessively devoted to a particular pursuit;
[例] The geeky kid now owns a million dollar software company.