While a non sequitur is a comment which does not logically follow the preceding comment, and a pre-sequitur is a comment relating to something mentioned much earlier in a conversation, a post-sequitur follows something yet to be said.

Compared with non sequiturs and pre-sequiturs, genuine post-sequiturs are rare, as most Americans find them immoral.
Jack: Hey there, sweet thang.
Jan: Sure, I'd love to.
Jack: Would you like to go out for a drink? Wait, what?
Jan: Hells yeah it was!
Jack: Was that some kind of post-sequitur?
Jan: Fine, have it your way. Toodle-oo!
Jack: Away with thee or I shall do mur-rer-der-r-r!
by DanielR January 2, 2008
Get the post-sequitur mug.
a statement that has little or no relation to what preceded it; illogical inference; (Latin for "it does not follow")
Example of a non sequitur:
Theo lives in a small apartment. Therefore he must have a small penis.
by yorrick hunt January 23, 2008
Get the non sequitur mug.
Like a non-sequitur, a pre-sequitur doesn't follow what immediately preceded it, but instead relates to something that came much earlier. It is a sudden or jarring break in the chronology, but it does follow... when you remember what it refers to.
Jen: Why did you leave Los Angeles?
Keith: Well... have you ever lived there?
Jen: I visited once, for a week. I liked the street performers on the boardwalk...
Keith: Oh, the boardwalk is where I got this red scarf!
Jen: I was trying to knit a scarf just like that last year but I never finished.
Keith: Where do you get yarn around here?
Jen: There's a good store just a few blocks from here, wanna come see?

... ten minutes later ...

Jen: Huh, do you smell Indian food?
Keith: Hmm, not really... but now I'm in the mood to get some Indian Food.
Jen: Sure, let's!
Keith: It was the pollution, that's why.
Jen: pollution?
Keith: Yeah, I wanted somewhere with real air, and LA wasn't it!
Jen: Oh, why you left Los Angeles
by my name is Cos November 6, 2007
Get the pre-sequitur mug.
A statement that has little or nothing to do with the preceding statement.
Non sequitur:

Joe: Do you like Green Day?

Bill: I'm hungry for wax fruit.

Joe: Are you high?

Bill: Don't try to catch me, I'm the Mesican drill.
by DeeDurk August 17, 2008
Get the non sequitur mug.
Like a non-sequitur, a pre-sequitur doesn't follow what immediately preceded it, but instead relates to something that came earlier, but too long ago to be relevant. It is a sudden or jarring break in the chronology, but it does follow... when you remember what it refers to. Often used as a comic device.
A classic pre-sequitur:
during Mary's job interview
Lou Grant: What religion are you?
Mary Richards: Mr. Grant, I don't quite know how to say this, but you're not allowed to ask that when someone's applying for a job. It's against the law.
Lou Grant: Wanna call a cop?
Mary Richards: No.
Lou Grant: Good. Would you think I was violating your civil rights if I asked if you're married?
Mary Richards: Presbyterian.
by Megareds December 6, 2007
Get the pre-sequitur mug.
1. Latin phrase roughly translating as "doesn't follow" (think: not-in-sequence), i.e. 'non-sequitur' describes something that doesn't follow on from the preceeding information or context. Often used as a form of humour.

2. Rotate the giraffe.
by phantom oddity May 20, 2004
Get the Non Sequitur mug.
"What is your favorite beer?"
"Gee, that's a good question - I guess I would have to say Celine Dion CD's are unlistenable."
"Isn't the definition above an example of a non sequitur?"
"Well, waking up in a ditch chained to a goat sure ruins your day."
by weepster August 3, 2006
Get the non sequitur mug.