Перевод - Сербский-Английский - Slusaj bre ako ti nesto fali kazi kao sto ja tebi...

Jag har fått okända sms på serbiska och undrar vaddessa sms betyder

"I kick you a bit" is a Serbian slang. Sentences are not connected so I have no idea if it reflects to any of these.
I really haven't heard someone calls somebody "ram" here but it is not strange. We use animals names often. Anyway, in this sentence it doesn't have negative connotation.