"Got the vote" can mean that the candidate won. It may also mean that the candidate got the votes of a certain segment of the population or a certain group.
She got mad.
got angry
"Got nowhere" means accomplished nothing toward a goal.
Meaning you snapped and got angry.
she really got the attention
"He has got" means "he has." This can mean "he owns it," or "he is holding it," or "he has control of it." You might hear "He has got every CD that band has ever made," or "He has got a cold."
You've got the idiom incorrect, so it doesn't mean anything. You might say "I've got the picture," which means "I see the situationa and understand it." You might also say "I get the picture," which means the same thing in a less formal way. You don't say "something" in the idiom.
you was close to something,you almost got it
It means she got really upset or angry, and lost her temper.
It should be "got her knickers in a twist." This is a funny idiom to refer to someone who is frustrated and angry. Think of how uncomfortable you would be if your underwear got all twisted up around your waist. In America, it's said as "got her panties in a twist."
On the house means it's free, or that the person who says that will pay for whatever you got.
That's not an idiom, it's just a statement. Someone is saying they got no response to a question or action.