How to Use "skivvies" with Example Sentences

1. So changing your skivvies can change your luck ?
2. I need to get a new pair of skivvies .
3. Moving the capital to the middle of the country means an end to the reverse upstairs , downstairs that has the poshos underneath the skivvies .
4. I only got my skivvies on underneath.take the suit off !
5. I only got my skivvies on underneath .