long story short
US /lɔŋ ˈstɔri ʃɔrt/
UK /lɔŋ ˈstɔri ʃɔrt/

1.
resumindo, em suma
used when you are going to explain what happened in a simple way, without giving all the details
:
•
So, long story short, we missed our flight and had to stay an extra night.
Então, resumindo, perdemos nosso voo e tivemos que ficar uma noite extra.
•
I could tell you all the details, but to make a long story short, he got the job.
Eu poderia te contar todos os detalhes, mas resumindo, ele conseguiu o emprego.