(Usually heterosexual) sex, after which the female party rates it a 3 out of 10 and the male rates it a 7 out of 10. The average rating is a 5, so it’s mid sex.

This also applies to any instance of intercourse with the average rating of 5.
When she sees a “Saturday’s are for the boysflag in his room, she knows she’s about to have extremely mid sex.
by mistakex10 July 22, 2021
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When you're having sex with a girl and she finds it so unsatisfactory that she starts replying to texts mid-sex.
"Awh dude how'd your date go last night?"
"Not good, she pulled a mid-sex text on me"
"Really, that bad?"
by Shebesta16 May 7, 2015
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