Pulling a "Jack Tripper" describes a situation/conversation whereas 2 or more parties are talking - or overhearing - different subjects, but don't realize it. The misunderstanding is usually rife with sexual innuendo. This type of comedy exchange was used extensively in the 80's sitcom "Three's Company", hence the name.
Jack Tripper: Mr. Furley is standing outside the bathroom and eavesdropping while Jack and Chrissy are installing a shower curtain Okay, Chrissy, I'll get in the tub with you, then we can get it on.
Chrissy: Get next to me, I'll show you what to do.
Jack Tripper: This isn't exactly the first time I've ever done this.
Chrissy: Maybe so, but girls are better at this than boys.
Jack Tripper: Come on, Chrissy. A little less talk and a little more action, okay?
Chrissy: Okay, you do your part and I'll do mine. I don't think it'll reach!
Jack Tripper: Of course not, you've got to unfold it first!
by Sayman August 26, 2006
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A situation in which two or more parties believe to have a mutual understanding of the subject matter, but unknowingly are addressing two independent thoughts or conclusions.
Direct from Three's Company:

Mr. Furley is suffering from Jack Tripper Syndrome and is standing outside the bathroom and eavesdropping while Jack and Chrissy are installing a shower curtain.

Jack Tripper: Okay, Chrissy, I'll get in the tub with you, then we can get it on.
Chrissy: Get next to me, I'll show you what to do.
Jack Tripper: This isn't exactly the first time I've ever done this.
Chrissy: Maybe so, but girls are better at this than boys.
Jack Tripper: Come on, Chrissy. A little less talk and a little more action, okay?
Chrissy: Okay, you do your part and I'll do mine. I don't think it'll reach!
Jack Tripper: Of course not, you've got to unfold it first!
by Andrew Rakaczki October 22, 2007
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When high on drugs, the act of tripping and hallucinating extreme visions of murdering people (normally women in questionable lines of work).
"Why is Ben cutting the floor with a plastic knife?"
"I think he's done a Jack The Tripper, innit.."
by C L G May 8, 2018
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noun

\ ˈjak \ \ ˈtri-pər \

Definition

A person who is notorious for feeling guilty about masturbating.
Why’d you and John break-up?

Girl, he is a total Jack Tripper. It wasn’t just the well documented / semi-universal guilt a person might experience right after jacking off…John would also feel it WHILE jacking off ! And don’t get me started on how that affected our sex life. Any outside-of-the-box shit i would mention to him like brother/sister role play or having sex in public would send him into a shame-spiral that would render him useless….sexually for weeks at a time. We broke-up because John is a DEFCON-5 level Jack Tripper. Cold truth. Cold truth.
by March 29, 2022
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noun

\ ˈjak \ \ ˈtri-pər \

Definition

A person who is notorious for feeling guilty about masturbating.
Why’d you and John break-up?

Girl, he is a total Jack Tripper. It wasn’t just the well documented / semi-universal guilt a person might experience right after jacking off…John would also feel it WHILE jacking off ! And don’t get me started on how that affected our sex life. Any outside-of-the-box shit i would mention to him like brother/sister role play or having sex in public would send him into a shame-spiral that would render him useless….sexually for weeks at a time. We broke-up because John is a DEFCON-5 level Jack Tripper. Cold truth. Cold truth.
by March 29, 2022
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