a word question

Would someone tell me what "calebs" means please?

I`ve found this video on youtube and liked the music very much.

http://ie.youtube.com/watch?v=RmZ-_CcV2rc&locale=en_IE&persist_locale=1

But I didn`t really understand the comments.
please help me.
Thank you.

It's just a lazy way to type "Caleb's". Caleb is somebody's name.

- Kef