These easily distinguished grotesque creatures positioned alongside structures, gargoyles, even at the root of their hard stone bodies serve a deeper purpose. They were implemented in medieval Europe for cathedrals and churches as roof spouts to drain the water away from buildings. I find it a bit peculiar to hide a simple action with an obvious outlandish creature, but the world of earth is masked with oddities.
I might add that despite being a "Medieval Gutter" gargoyle is not the only proper way to depict one. A structure or even a sculpture might have/be a gargoyle for it has a unique look alongside draining water. In essence it can just be an artwork of distorted human or animal form. Also interesting to note is the word "gargoyle" can be used as an adjective and as such is worded "gargoyled", but I cannot say whether or not you would be discounted on using it.