Noun : the guck in a stagnant pond. ,a can of guck to patch the roof.    From Dictionary.com. 

The guck is gone from the air, the streets are cleaned, and, if things are really wet and cold, the local mountains gets snow.    From Wordnik.com.  [There are times…] Reference

And wash your hands all the time -- all the time -- because you just never know what kind of guck (ph) is out there.    From Wordnik.com.  [CNN Transcript Jun 17, 2008] Reference

Here is a nest for a bird, ( "guck" all birds are ducks).    From Wordnik.com.  [Yarn Miracle] Reference

(From Dennis) The outside black shell is the guck.    From Wordnik.com.  [EXTRALIFE – By Scott Johnson - The dirtiest mouse ball in the world.] Reference

"He was using too much of this guck," said Jurgenson.    From Wordnik.com.  [Neutron Star]

They help raise your HDL levels to clear away the guck.    From Wordnik.com.  [You: On a Diet] Reference

Erec crossed his arms and paced, careful not to slip in the guck.    From Wordnik.com.  [The Three Furies] Reference

Didn't Popeye make the sound "guck guck guck guck guck" when he laughed?.    From Wordnik.com.  [Tin foil hat or déjà vu all over again?] Reference

'You'll get no steaks on this tub,' said Jill, 'but there's guck to fill the gut.    From Wordnik.com.  [Project Pope]

The horns will freeze, the oil congealing into thick guck in the valves and slides.    From Wordnik.com.  [Cymbals Guy] Reference

But her trace did not lead into a tangle tree or guck-tooth swamp or the lair of a wyvern.    From Wordnik.com.  [A Spell For Chameleon]

Erec grabbed a handful of guck and threw it at her, but it bounced off and fell to the ground.    From Wordnik.com.  [The Three Furies] Reference

I got other people who use stuff like this, people who need special guck or something goes wrong in their heads.    From Wordnik.com.  [Neutron Star]

Also, there are saltwater nose drops that will help get all that guck out of their nose, for want of a better word.    From Wordnik.com.  [CNN Transcript Jan 17, 2008] Reference

Much like those archaic cars spewing out black guck into the somber Cuban air, the trade embargo that the US has against Cuba is outdated.    From Wordnik.com.  [Teresa Rodriguez Williamson: Uncovering Cuba] Reference

By the way, some time before I had read Rolf's remark to her: "All tier hat seel, guck in aug" (= all animals have souls, look in their eyes).    From Wordnik.com.  [Lola or, The Thought and Speech of Animals] Reference

On the ground among dried brown fall leaves I find a traffic-safety capsule of glow-in-the-dark Martian green guck, which we toss back and forth while we walk.    From Wordnik.com.  [Shampoo Planet]

The air is revolting; I sneeze and grey nodules of guck pop out my nose like the little gray mice that crawled in and out of the water pipes in the Paris m'tro.    From Wordnik.com.  [Shampoo Planet]

But the moratorium did not save Santa Barbara from guck.    From Wordnik.com.  [The Globe and Mail - Home RSS feed] Reference

My brother managed to stumble over a paint can, oozing blue guck onto the thick, furry bedroom carpet.    From Wordnik.com.  [The Globe and Mail - Home RSS feed] Reference

Entertainment elana Giggling like a mad scientist while I shampoo all the guck out of my makeup brushes.    From Wordnik.com.  [Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7] Reference

When they got troubles, they use more guck than usual. ".    From Wordnik.com.  [Neutron Star]

Covering the shores with guck.    From Wordnik.com.  [Week 880: Our most famous neologism contest, and the winning oil spill song parodies] Reference

COHEN: ... guck, that's just what it is.    From Wordnik.com.  [CNN Transcript Feb 19, 2008] Reference

Sorry about all that gobbley guck, folks.    From Wordnik.com.  [CNN Transcript Oct 25, 2006] Reference

1/2 t. ginger pinch of cayenne pepper pumpkin seeds from 1 pumpkin, cleaned of guck.    From Wordnik.com.  [Toasted Pumpkin Seeds to the 3rd power] Reference

Protein protoplasmic guck.    From Wordnik.com.  [Firedoglake » Drama] Reference

I washed all the guck out of Lily’s hair.    From Wordnik.com.  [2009 Florida Part 1] Reference