What does 'coprolalia' mean?

Coprolalia or cacolalia is a pathological condition which deals with the fact means that those people who suffer from it, tend to say obscenities all the time. This makes others around (them) to feel really uncomfortable, and it's hard to control oneself.
In most of the cases, it is patients with mental diseases or Tourette syndrome, an inherited neuropsychiatric disorder which starts during childhood and is characterized by some physical and phonic tics, who are the main victims.
Among the latter, using nasty things, curse words and all type of phrases that can be considered inappropriate in a social area is usual.
Generally, people shun them, so the odds are that they get cut off from job, family and many other activities with an anxious behaviour (I don't understand "with an anxious behaviour" in this phrase). But the worst is that in their own mind, these words are considered a way of playing (not sure if this is what you meant) playing yet, making it impossible for them to concentrate on anything else. Keeping this under control is complicated because it's due to a lack of right connection between brain neurotransmitters. Its origin is still unknown.
One of the treatments is/consists in applying botulinum toxin or ,commonly named/called Botox, a toxic bacteria, close to the vocal cords, which paralyzes muscles for a while,thus avoiding this way fits.

Thank you :)

--- You did a fantastic job writing about a subject that required quite specialised vocabulary. Keep up the good work!