No, I don’t really mean swearing. I think ENFJs have an innate sense of what is appropriate and when the atmosphere is relaxed, they’re okay with dropping it in there. ENFJ inappropriateness tends toward making themselves look like total weirdos if they think it will amuse you.
ENTPs have an element of this, but they also have a kind of “tell it like it is” mode sometimes where they either don’t see or don’t care when they’re being or bordering on insensitive (or are trolling on purpose). Again, not really about swearing, just having to pick your way around words comes very naturally to the ENFJs – ENTPs usually come across a little sharper or a lot more anxious.