To send a sexual text message, or explicit picture of ones-self to a member of your immediate family.
Kid: hey mom look at my dick! (then picture)
Mom: Stop insexting me your father might catch us!
by 1011010101293 October 28, 2010
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To be distracted while driving in ones vehicle while sending sexts (erotic and arousing texts) through a cell phone.
The insexticated man crashed his vehicle because he was sexting and not paying attention to the road.
by Captain K & Katball January 5, 2012
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A sexual text message sent/received by a relative, in hopes of invoking sexual relations. (A sext to/from a family member.)
"Eww, I read all the texts sent from Anna's brother to her, they were all insexts!"
by Shandi1337 May 11, 2010
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The act of sexting a close relative. Derived from the word "incest"
X: (Sends sext) Who's your daddy, baby?
Y: Dad, I told you to quit it with the insext. It's kinda gross.

X: I heard that Joe got arrested for insext with his 17-year-old niece.
Y: What a mess.
Z: That's what BP said!
by Hamfry May 23, 2011
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the act of convincing a member of the opposite to participate in sexual intercourse with you by making said opposite sex member think it is his/her own idea.
Matt: I'm never going to get Jane to bone me. She's such a prude.

John: What about the secret weapon?

Matt: ?

John: You know, the Insextion Playlist.. works 60% of the time, every time.
by Dome Knob March 30, 2011
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When two people who are related are sexting each other.
(not to be confused with texsulting)
Cori and her brother are insexting each other.
by shinjuo May 8, 2010
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1) When you have sex with someone when they're asleep
2) When you have sex in a dream
3) When you have sex while watching Inception
1) George: My girlfriend broke up with my after I tried insextion
2) I had some great insextion last night
3) I got kicked out of the theater due to insextion
by September 15, 2020
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