"The play was a let down," means
The play was sad.
The play was offensive.
The play didn't meet one's high expectation.
"The meeting was called off," means the meeting was
cancelled
postponed
rescheduled
"Our plan fell through," means our plan
fell into place perfectly
came through as expected
didn't happen
"She wants to get back at him," means she wants to
call him back
take revenge against him
give him a favor
"Let me get back with you on that," means
I will talk to you about it later.
I will accompany you later.
Let's do it together.
"He backed out at the last minute," means
He decided to not go forward as planned.
He went out at the last minute.
He wanted to start over.
Please fill out fill up( fill out, fill up ) this form.
I had to put on put out( put on, put out ) a brave face.
Are you ready to turn out turn in( turn out, turn in ) your homework?
Sounds like you just made out made up( made out, made up ) that story.
You don't want to pass over pass up( pass over, pass up ) this opportunity.
You can hand out hand over( hand out, hand over ) the document to me.