sosi pisos, which came from Russian language (rus.: соси писос), means "suck a
dick": sosi - is a transliteration of the corresponding Russian word that is translated as "suck", and pisos - is a non-dictionary word which was coined by kids by transforming another Russian word "писюн" which could be translared in English as "
prick", "pecker" or "penis".
Expression sosi pisos became very popular as a
meme. It is usually printed on a picture of a grey stripped cat that has laid its paws at the wooden crossbow which is a piece of some kind of a house furniture, possibly a locker or table. Print "соси писос, мем" in
Google and you
will find at once a picture of that cat. Sometimes the original inscription "соси писос" at the cat'
s picture is replaced with "ты знаешь, что делать", that is translated as "you know what to do", that of course mean "suck a
dick".
In a publick chat someone gives a picture of a "sosi pisos" cat with the inscription:
"Guys, look after a cat. I
will come soon." Then those participant leaves the chat. This means that the person think the topic of the conversation is meaningless, and chat participants are
assholes.