have one's wits about one
To be alert; remain calm; not panic.
Sam was the only one who kept his wits about him when the floodwaters of the Mississippi broke into our yard.
have oneself
To enjoy. Sometimes used in very informal speech to provide emphasis.
As soon as their parents left, the boys had themselves some fun.
After working hard all day, John had himself a good night's sleep.
have one’s way
get one’s way
To arrange matters the way one wants (especially when someone else doesn’t want the same way).
My brother always wants to have his way, but this time our parents said that we could do what I wanted.
If Sheila doesn’t get her way, she becomes very angry.
have qualms about
have qualms in
To feel uneasy about; hesitate about something.
Mike had no qualms in telling Sue that he was no longer in love with her.
have rocks in one's head
To be stupid; not have good judgment.
When Mr. James quit his good job with the coal company to begin teaching school, some people thought he had rocks in his head.
have someone by the balls
To have someone at a disadvantage or in one's power.
The kidnappers had the company by the balls for six long weeks.
have something going for one
To have ability, talent; good looks, and/or influence in important places helping one to be successful.
Well now, Pat Jones, that's another story - she's got something going for her.
have something on the ball
To be smart, clever; to be skilled and have the necessary know-how.
You can trust Syd; he's got a lot on the ball OR he's got something on the ball.