pack up (2) Meaning If something packs up, it stops working and needs to be fixed. For example Why does my air conditioner have to pack up on Friday? I cant get it fixed til Monday, and its going to be a really hot weekend! Stans printer has packed up again! Why doesnt he just get a new one? ━━━━━━━━━━━ #Phrasal_Verb_of_the_Day @EnglishoftheDay 7.2K views19:03