Like, dude.

is, like, n. Slang 1. to say something similar to [she was, like, "whoa!"]  2. to perform an action implied by; often is followed by a sound effect [I was, like, "wham!"] : same as is like,
—Note that, unlike paraphrase, the expression is, like, indicates a rewording performed by the speaker, rather than the individual quoted

As you can guess, I didn't get this one out of Webster's New World, Second College Edition.