Spunk Sandwich Edit Meaning

1.

This being a sandwich that has been jizzedover and offered an unsuspecting victim. The recipient can be either sex, and someone who the donor secretly dislikes.

I got my revenge against Sandra by offering her a spunk sandwich, which she ate unwittingly. Inside my head, I bubbled with a mixture of pride and guilt, keeping this sordid fact to myself for the time being, yet surely to reveal to her at a later date.