Get the lowdown on (someone or something)
To receive the full story about someone or something.I met a friend for coffee to get the lowdown on our friend who is getting married.
Get the lead out
To hurry."Get the lead out," I said to my slow friend.
Get the last laugh
To laugh at someone who has laughed at you.We got the last laugh when the car that had passed us on the highway got a speeding ticket.
Get the ball rolling
To start something."Let`s get the ball rolling and start planning the party."
Get the ax
To be fired.The man got the ax last week and now he has no job.
Get (something) under control
To be able to control something.The fire fighters were quickly able to get the fire under control.
Get (something) through (someone’s) thick skull
To get someone to understand something.I could not get it through my friend's thick skull that I could not go on a holiday with him.
Get (something) straight
To understand something clearly.I could not get what my friend was trying to tell me straight.
Get (something) over with
To finish something (usually something that you do not want to do).I was very happy to get my exams over with.
Get (something) out of the way
To take care of some business, to do or finish something.We got our work out of the way and began to plan for the weekend.