It looks like "suspicious" rap battlers are on the loose in Charlton, Massachusetts. The local police department posted this bulletin, warning residents of mysterious strangers that might shout "Rap lingo" at them. Obviously, a lot of Facebook commenters did not take this notice very seriously:
Not everyone disagreed with the police's stance on this, and they initially responded to criticism with a little more information to justify the a post about the incident.
They also updated later to add some context to the post.
Rap music is safe... for now, just keep your rap battles out of Charlton.