literally some "roti" now. Meaning you/someone do something unacceptable and told to fix it.
Ei perkele mitä sinä teet, joku roti nyt! No hell what you do, some roti now!
I have no idea where roti comes, it just is. Its not a word.
Ei mitään rotia = someone dont behave. Literally "no anything roti"
Ajavat rallia tuossa tiellä, ei mitään rotia. (they) drive rally in that road, no any roti.
Bit old but still used. If someone knows where roti comes im interested