* "Rock my world": This is a common expression that means to excite, thrill, or deeply impress someone. It implies something that's very enjoyable or exciting.
* "Rock out": This means to enjoy music loudly and energetically, usually at a concert or party.
Without more context, it's difficult to say exactly what you mean by "rock my". Please provide more information, such as the sentence it was used in, so I can help you understand its meaning.