What is Summertime Cock?
1.
The change in the nature of your cock during the months of May to August in that girls want it solely because it is the summer and they know that once the summer is over, they will no longer be interested.
Guy 1: "So is she still interested in you?"
Guy 2: "Nah, but just wait for May to roll around. She's totally gonna want my summertime cock!"
See