The "в" preposition is missed. It must be "еби свою маму в задницу".
Fuck your mother in the ass
"in" is originally missing, making it gibberishKon☆...? No, rather, a Ka☆☆n Kujou cosplay would fit her better...Dogegen Chonenger-san who just happened to be in Japan.Something like, "Kiss your mother's cute ass"...Hey, what did she say?Sorry, I don't speak a lick of Russian...