- • informal Do something badly or ineptly; mishandle something: she had mucked up her first few weeks at collegeMore example sentences
make a mess of, mess up, botch, bungle, spoil, ruin, wreck, mishandle, mismanage
- I guess we have to wait for the mainstream media to muck things up this badly.
- I get scared that I shall muck something up badly, so I tend not to volunteer for things.
- One of the hardest things we ever have to learn is that you can't lead other people's lives for them, however intent they seem on mucking them up.