This publication is a unique work, where ordinary swearing is considered from all sides - from simply hooligan to strictly scientific. The author has collected extensive material that is not known to the general reader. This is the first book of this kind in Russia, the first attempt to consider at the everyday level such a phenomenon in the Russian language as strong words and expressions, this, only at first glance, unusual vocabulary. As evidence, confirmation of his words, the author cites quotes from the classics of Russian literature, appeals to recognized figures of culture and art, to popular politicians, in general to famous people. The combination of entertainment with huge informational materials suggests that this book will become a bestseller.