gratuitous profanity
Profanity for the sake of profanity, in a forced attempt to make a movie, videogame or song sound cooler. It is uneeded.
Eminem does not execute gratuitous profanity, but it does seem as though he was trying too hard to sound cool on his first two albums. Now he's established a reputation, he's making really shitty music without as much swearing, so he can show that without all the badmouthing, he really does sux0r my bizalls.