A big long Black tube that shoots out bombs.
Oh, you said Kanon?
That means true I think. Canon = True, actually happening

"Canon" refers to whether or not a situation or event follows the accepted Mortal Kombat (videogam) plotline.
For instance, the MK Movies are non canon, as the depiction of characters is sometimes far removed from the characters of the game. Shaolin Monks is considered non-canon, because it has some differences between the original game's plot (Liu Kang didn't defeat Goro on Shang Tsung's island, Reptile not serving Shang Tsung, etc).
The intro trailer to MKA is generally considered non-canon, as Ed Boon himself has said that they ignored actual character rivalries so that they could have a big battle scene.
So if everything else is non canon, the main games in the series are. MK1-MKA.

Canon is anything truthfully related to the appointed subject.
Ex. The death of many MK characters in MKArmageddon.

oh ...
Im not to quick on internet slang ... thanks

It means you get fired. Out of it.
cannon (1) (noun)
1. general rule
a general rule, principle, or standard
• one of the fundamental canons of free-market economics
2. religious decree
a decree issued by a religious authority, especially one ruling on religious practices
3. body of religious writings
a set of religious writings regarded as authentic and definitive and forming a religion’s body of scripture
4. set of artistic works
a set of artistic works established as genuine and complete, for example the works of a particular writer, painter, or filmmaker
• It’s not one of the best-known pictures in the Welles canon.
5. part of mass
in the Roman Catholic Mass, the prayer during which the bread and wine are consecrated
6. staggered singing or playing
MUSIC a musical technique in which different instruments or voices enter one after the other, each playing or singing exactly the same sequence of notes, resulting in often complex counterpoint
cannon (2) (noun)
1. member of clergy attached to cathederal
a member of the Christian clergy who is on the permanent staff of a cathedral and has specific duties in relation to the running of it
2. See canon regular

Thanks for clearing that up, peeps.
I'll lock this now.