Talking so fast that your mouth gets ahead of your brain, and you wind up flipping syllables around or dropping them entirely.
"I can't believe you actually did that; I call sheganigans!"
"You mean shenanigans? Syllabobbling again, are we?"
"Kim Kardashian is such a skank; I would marry her!"
"Please tell me you meant to say, wouldn't."
"Oops, I did! Man, what a syllabobble."