It's a chick, hence the fish reference, that gulps down cum like guppies gulping for oxygen in the water.
That little whore is such a cum guppy, she will swallow every drop!
The most fucked up thing a person can do. Also can be used as Fasslering or act Fasslery
Friend:Yo did you see steve yelling being behind that deaf kids ear
You:Thats such a Fassler thing to do