slip-slop

slip-slop

n
(Clothing & Fashion) South African a rubber-soled sandal attached to the foot by a thong between the big toe and the next toe
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
She drove over constantly from Roehampton and entertained her friend with faint fashionable fiddle-faddle and feeble Court slip-slop. Jos liked to hear it, but the Major used to go off growling at the appearance of this woman, with her twopenny gentility.
It said: "The proprietors have engaged the services of able reporters and it will soon be seen that in originality, vigour, accuracy and spirit the Newcastle Journal will far exceed those drowsy vehicles of slip-slop upon which the public have hitherto bestowed their patronage."