Just one of those days.= A day when everything goes wrong.
Today my alarm clock broke and I could't get my car started ..... Just one of those days.
Gut check.= A test of one's intestinal fortitude.
When everything is dark and everyone is depending on you, that's a gut check.
Have a crack at.= To give it a try.
A new fitness club is opening near my office. I think that I'll have a crack at it.
Hot stuff.= Something that is very good or exciting.
Right now Mr.Trump is hot stuff in America.
Sick and tired.= Very upset, disgusted.
I'm sick and tired of his behavior, I'm going to fire him.
Up and about.= To be healthy and to be moving around.
A couple weeks ago, I had the flu but now I'm up and about.
A bat out of hell.= Very fast.
I have a sports car which goes like a bat out of hell. I pay a lot of speeding tickets.
To pig out.= To eat too much or to eat a lot of food.
I love to pig out on Chinese food.
Spiffy.=Slang word which means very good looking.
Recently, I have been wearing spiffy clothes.
In a spot.=To be in a difficult position or in a corner.
If you are in a restaurant after your meal and you forget your wallet, you are in a spot.