A conversation where two people stimulate each other intellectually and creatively in a way that feels almost sexual, but isn't explicitly sexual at all. Example: I caught Joan on ICQ last night and we had a little smeventy-smeven about arcologies and how they would work. It was great.
SMEVENTY-SMEVEN
Meaning of SMEVENTY-SMEVEN in English
Slang English vocab. Английский сленговый словарь. 2012