teasesome
A situation where one person suggests a menage a trois to another only to back out before adding the promised third member.
"So, that threeway you were talking about last week? Who did you have in mind?"
"Oh, sorry. The window closed for that."
"So, there was never a threesome at all. It was just a teasesome."
"Oh, sorry. The window closed for that."
"So, there was never a threesome at all. It was just a teasesome."