A person or account that uses spammy methods to accumulate a large number of followers on a social media site. This practice is common on Twitter where a user will friend thousands of strangers with the hope that a percentage will follow back. Many of the follow-backs come from those also hoping to accumulate followers, thus like attracts like and grows similar to how lint is used to remove lint from a dryer lint screen.
I have a thousand followers on Twitter, but about a third of them are lint balls so they don't really count.
What you sometimes find whenever a girl doesn't properly clean her genital area. Like whenever her boyfriend is going down on her, he might find a lint ball; GROSS.
DJ: I was eating her out, &nd she had a huge lint ball in her pubes...