It's a wrap

Just for those who may be confused, no, no, it is not a 'rap'. Think wrapping presents and you're on the right lines.

Meaning & Etymology
It's a wrap means this is successfully completed. Based on the literal meaning of it's a wrap (the filming of this movie or part of a movie is completed)

Use in Normal Speech
To say that a task is finished.

"After three months of planning and two years of building, it's a wrap and we've moved into our new home."

Same use, but in the past tense.

"It was a wrap for the latest unmanned mission to Mars."