nonclusion 

noun; 1. a final judgment or determination based on nonsense or on illogically connected facts and arguments.
2. the act of noncluding.

verb; nonclude

How the court managed to determine that the former honor role student is mentally incompetent to stand trial is a complete mystery, probably even to the judges who wrote the opinion. Simpy stated, it was not a conclusion, it was a nonclusion.

nonclusion by Incognito Law Student June 15, 2009

conclusionary

a word or phrase that draws the intention of a conclusion.
A phrase being a conclusionary statement.

conclusionary statements:

In conclusion, In retrospect, as a result of, therefore, proving my point that...(etc)

conclusionary by Ttddhj November 17, 2007

Jumping to Conclusions 

When you add 2 and 2 together... and get 22

Person A: "Yeah so I saw your girlfriend talking to Brad last night and she said..."
*Interruption by Person B*
Person B: "Holy Sh*t! She's cheating on me!"
Person A: "Dude, stop jumping to conclusions! She said he needs to get a life!"
Person B: "Oh..."

Jumping to Conclusions by Future Mind-Controlling Robots July 26, 2010

Jump to conclusions mat 

its a mat with different conclusions you can jump too. the worst idea ever.

see office space

Jump to conclusions mat by vincenzo December 3, 2003

conclusionist 

A person that always jumps to conclusions, no matter what is meant or said.

Julie is such a conclusionist, when I told her I would like to look at cars, she jumped to the conclusion that I want to buy another car.

conclusionist by Gadget King September 25, 2011

In conclusion 

the most basic and simplest way to end your essay that you forgot was due the next day.

"In conclusion, the most basic and simplest way to end your essay that you forgot was due the next day is "in conclusion"."

In conclusion by the ace-o-spades February 27, 2010

Optical Conclusion 

Making a final decision by seeing something without having all the facts.

I saw your girl having lunch with some other dude, so I came to the optical conclusion that they were bumpin' uglies!

Optical Conclusion by Jason Schueler January 6, 2009