Cars and car parts as euphemisms ...... whole other thread there!!
Not confined to Corvettes .... both the old blues songs (Robert Johnson and Lightning Hopkins ) are full of mechanical innuendo.
Sad that Prince didn't get a playable link ....so here it is ....too good a car-reference song to pass by.
https://m.youtube.com/watch?v=v0KpfrJE4zwK
