salty secret
When you blindfold your partner before sex, and then tell them to open their mouth to get ready for a load, you put a salty treat in their mouth instead (chips, pretzels, etc.)
"I gave my girlfriend a pretty nice salty secret last night!"
"Yeah, what'd ya give her?"
"Salt and vinegar lays!"
"Yeah, what'd ya give her?"
"Salt and vinegar lays!"