slippy       
adjective UK informal uk/ˈslɪp.i/ us/ˈslɪp.i/
 (表面)湿滑的,滑的
A slippy surface causes you to slip easily because it is wet or smooth.
  Careful - I've just polished the floor and it's a bit slippy. 小心——我刚给地板打过蜡,有点儿滑。 
 See also: slippery