goo
noun
°(informal) Any semi-solid or liquid substance; especially one that is sticky, gummy or slippery; frequently of vague or unknown composition, or a bodily fluid.
"''I stepped in some goo and had a terrible time getting the sticky stuff off my shoes."
°Excessive, showy sentimentality.
''When dad couldn't stand the goo anymore, he stopped Tommy's tearful goodbye from the Swedish au-pair Matts, firmly smacking the boys' pants and grumbling "Now stop the goo or I'll give each of you a reason to cry!"
verb
°To apply goo to something.
"''They gooed their hair with some fragrant styling product."
°To produce baby talk.
"''The baby gooed while daddy made sappy faces at it."
synonyms: goop, gunge, gunk, gum