It's basically part of an old fashioned guttering system. Rain water that falls on the roof is channeled to, then through, a gargoyle. The water will exit the gargoyle's mouth (usually) and fall to the ground in a stream that doesn't touch the wall of the building thus preventing erosion.
I missed "Giddyup" because I've always heard it pronounced and written it as "Giddyap". (Maybe this is regional? I'm from the Southwestern US.) The dictionary lists "Giddyup", "Giddyap", and "Giddap" as all being valid spellings and pronunciations; you should probably accept all of them.
Geeup should also by accepted. As someone who has spent many years training horses I was VERY surprised to see 'geeup' was not accepted as that is how it is normally referred to in training.
Gargoyle is the correct answer. Grotesque is an adjective that means disgusting, and when something is grotesque, it may cause witnesses to be sick and vomit.
There is the noun "Grotesque" which is a decorative (though unpleasant looking) object. As others have mentioned, a gargoyle is a functional object used to allow water to flow from the roof of a building.
A ghoul is someone who robbed graves - generally to steal the corpse for use at medical school and training centers for use in dissection. It got very bad in Europe a couple of centuries ago, and that's where the word comes from - it has nothing to do with the "undead" and because a couple of modern fiction writers misuse the word does not somehow change the definition because some hack writer or hollywood b-movie scriptwriter says so.
You have it the wrong way around , that is definitely not were it comes from... just because people misused the word to indicate some graverobbers, doesnt chance the definition of the word. Not even if you say so (decided to keep the last comparison friendly.. without any adjectives)
"Gulag" actually refers to the agency that administered the camps, not the camps themselves, although it's come to have this meaning over time. https://en.wikipedia.org/wiki/Gulag
Yes I did,............ I remember a story about a man who told his girlfriend that two Brazilian Skydivers had died in an accident, she said how terrible, then after a minute asked "How many is a Brazilian?"
Gargoyles actually had a function.
Then again, that would basically look like what happened if Daffy Duck and the Thing had a baby.