Possible Clues:

• Caramel sauce, e.g
• Sticky, yucky, sometimes-green stuff
• Possible result of over-reduction
• Sticky, oozing stuff
• Gloppy stuff or early baby word
• Travel round something sticky
• Excessive sentimentality as thug in the end rubbed out
• Thick slime
• Cloying sentiment
• Slushy stuff, mostly fine