He's 'having a rough time (of it)'. = He's 'going through a rough time'. [=he is having a difficult time; his life has been difficult recently]
The project still has a few 'rough edges'. [=the project still has a few things that need to be changed or finished]
Don't 'be so rough on them' [=don't punish or criticize them so harshly] for making a mistake.
(..) Well, I haven't fared any better. She keeps drawing her stupid circle pictures and then running off to the bathroom. We get it. You have a bum-tum. Yes. Ugh! You think you guys have it rough. I've been stuck here listening to crazy Rob spew his insane garbage What happened to your (..)2017 TvShow: Brooklyn Nine-Nine Title: #DUPE# Season: 4 Episode 11