There is a slang word that comes up when you type the formal word, but when you then type the slang word it comes up many more times. I won't say what it is so people reading comments won't get a hint.
If I'm thinking of the same word you're referring to...I believe I've fixed it that you only have to type in the 2 letters and it will come up for all of the them. I don't expect anyone to know it since they really aren't words.
I never knew that was the word they were saying until I looked up the lyrics for this quiz. According to 2 different websites that is the correct word. One of the definitions for the word is to "talk foolishly; babble".