To blow air into the vagina for the purpose of causing extremely loud pussy farts. Usually done without permission and on a first date so that the girl feels very uncomfortable and tries to hold it in, but is usually unsuccessful because she is from Delaware and has poor control over her worn out pussy muscles.
I went down on Wendy after just meeting her at the mall like an hour before. I gave that whore a Delaware Thunder Cat. I think she really liked me because she tried to turn up the radio in the car so I couldn't hear it.