Is "shvisle" a real or made up word? [closed]

I've come across the word in this captchart: "Yo, my nizzle, can you pass me that shvisle?". Is it supposed to mean something?
I've easly found the meaning of nizzle, but I'm at a loss with shvisle. I've found out that the guy on the picture is a rapper called Snoop Dog and that shizzle my nizzle is one of his catchphrases.

Is shvisle a made up word from shizzle, in that case is "Can you pass me that shvisle" supposed to mean anything? And is it supposed to be funny? I'm asking this last question because on that TED talk (7:18) people laugh, are they laughing because of the captchart or because of the speaker's comment : "they contain Snoop Dog" in which there might be a pun I don't understand?

• the link you gave is to 'art' made out of a CAPTCHA.
• the CAPTCHA was 'paleontological shvisle'. A common strategy to increase security with CAPTCHAs is to use a random string of letters. That is what 'shvisle' is.
• The creator of that picture at CAPTCHArt must have gotten a screen shot of the CAPTCHA of those two words, was inspired by the random looking word thinking it would be pronounced like one of Snoop Dogs sayings, and put together a picture of bones, Snoop Dog, and the CAPTCHA.
• hilarity ensues.

Shvisle doesn't occur in:

• any of the dictionaries indexed by OneLook Dictionary Search: 19,398,235 words in 1062 dictionaries indexed,

• any Google results, excluding those discussing the captcha, and

• any Google Books results.

So it's safe to say it's a made-up word, or more likely, as Mitch answered, a random string of letters.