Definition of bunk-up in English:

bunk-up

noun

informal
  • A helping push or pull up.

    • ‘I didn't know anything about detention centres and I'd like to think I'd be the same with any kid who needed a bit of a bunk up.’
    • ‘I locked my fingers together to give him a bunk up, and we set off.’
    • ‘Been in the industry for less than 3 years and want to give your career a bunk-up?’

Pronunciation

bunk-up

/ˈbʌŋkʌp/