Quoted By:
"Pičko ti mater"
It is often said as "jebem ti pičko materno"
The first (which is the most commonly used one) just means "your mother's pussy", the second one means "I fuck your mother's pussy".
These aren't necissarily used as insults, though, it's extremely versitile. You could say "to pičko materno okno", which would mean "this mother's pussy window", and it would be grammatically correct.
