slippy
From Longman Dictionary of Contemporary Englishslippyslip‧py /ˈslɪpi/ adjective British English informal SLIDEa slippy surface or object is slipperyExamples from the Corpusslippy• Drive carefully; the road's slippy.• I got to walk careful cos the pavements are so slippy.• They were slippy from the soapy water and his eyes were full of tears.• They lay entangled, breath slowing down, slippy limbs entwined.• In places the towpath was slippy with mud and Henry pedalled precariously, dodging the puddles.