Definition of slippery dip in English:

slippery dip

noun

Australian
  • A children's slide in a playground or park.

    • ‘For example, felt mats can be used on a slippery dip to minimise friction when you slide down and make the ride faster.’
    • ‘While she was off doing her business JJ moved off the little slippery dip onto the big one not far away.’
    • ‘In the bark-covered playground area there are a slippery dip, two swings and a seesaw.’
    • ‘Westport House has swan pedaloes, train rides, a fun palace, a hill slide, a slippery dip, pitch & putt, rowing boats and log flume rides.’