Why does America need Secret Prisons?
Cellar tag lines
What it means to be an American

Some Maine-risms:

"Jeezum Crow"
"Jeezum Crow bar" (pronounced crow-bah)
"I'll be jiggered up a hemlock"
"Can't get there from here"

Ahh, I'll think of more.

'Murrickin phrases:

Jonesing
BFE
boo-boo/owie

Another American (I think) phrase: "to bone up on" something, as in to study a subject intensely for some purpose.

The whole nine yards.

I always thought this was derived from football by someone who probably didn't last very long as a coach but found out a while back that it actually refers to the length of a string a bullets that you see guys feeding into a machine gun in WWII footage.

Balls to the wall.

Somebody's gonna have to help me out with this one. I have a feeling that this one might not have originated in America even though its used here a lot.

Freeze the balls of a brass monkey.
Colder than a witch's tit/heart.
Bumps on a log.
:litebulb:

1. Mingya!
2. S'up?

i go through phases with sayings. i dont know if their origins are strictly american, but I'm a 'merican, and i heard them in America:

All the farts came out of the blanket: gotten to the truth of the matter

dumber than a bag of hair: self explanatory

tear that up! : i'd like to copulate vigorously with that person

i wouldn't fuck her with your dick: i'd prefer not to copulate with her because i fear contracting venerial disease

Oh Oh...

sticks out like dogs balls - thats really obvious

useless as a nun's nasty - not very helpful

useless as tits on a bull - not very helpful either

full as a fat ladies sock - gee, I think I've eaten too much

paper bag material - a person of not great appeal, who's only chance of getting laid would be whilst adorning a paper bag on their head

2 paper bag material - a really unappealing person, warranting the addition of a secondary paper bag, in case the first one would malfunction.

A double bagger - One for them and one for you just in case theirs falls off!

Both of those are used in Britain, but are quite old fashioned. I think they come from around the 16th century, but I may be wrong.

Bone up on something, we use also.

"Can't get there from here". I love that. I can almost hear the Maine accent!

Also a great R.E.M. song, from 1985...

"Can't get there from here" actually comes from an old vaudeville joke.

NYC is known for lots of one way streets and bizarre traffic regulations. So when the out of town gentleman rolls down the window of his car and asks a pedestrian for directions to City Hall, the local has to stop and think for a moment.

"Let's see. Go up two streets take a left then... No that's a one way in the wrong direction.

Try this. Go right here, down two streets then go... No you can't turn left there.

Alright. You'll have to go up three streets turn right and then... Wait. That only works after 6.

Sorry buddy. You can't get there from here."

Here's a couple:

"Can I fix you some lunch?" -- fix == prepare

In the US, when someone is pissed (or pissed off), he's not drunk, he's angry.

We say pissed to mean drunk and pissed off for angry. :P
Fix we also use, but that's very regional.