Definition of do up in English:

do up

phrasal verb

  • Be able to be fastened.

    ‘a shirt so tight that not all of the buttons did up’
    • ‘I have put on so much weight that my posh dress won't actually do up at the back without making me look like I am a Diana Dors replicant that is carrying triplets’
    • ‘Some bras on the market now do up at the front.’
    • ‘I have a whole rack of jeans that for some reason do not do up.’
    • ‘It is buttoned down the front with five buttons, which also do up the men's way, and which are 10.5 cm apart, centre to centre.’
    • ‘My jeans won't do up anymore.’