It's good to see the copy/paste function is working well for yourself.
Unfortunately, you are wrong once again.
Dribble is a verb. It this case, it is defined as follows: to issue sporadically and in small bits. It makes no specific designation to a noun.
In my phrase: "Having a brain full of mindless dribble", the verb, dribble, is emphasizing the noun (brain).
Therefore, my phrase is defined as such: "Your brain mindlessly issues small bits sporadically."
Would you care to delve a little deeper into the topic? </font> show me that defenition in print and I'll stand corrected.