slibbersauce

noun or slibber-slabber (-s)

Etymology: slibbersauce, probably from Middle Low German slibber, slipper slippery (akin to Old English slipor slippery) + English sauce; slibber-slabber, perhaps reduplication of slabber (I) — more at slippery, slabber

obsolete : a sloppy or nauseating concoction used as food or medicine or as a cosmetic