Vocal fry -- sometimes called verbal fry -- is a term I heard on the radio a few days ago. It refers to 'a guttural fluttering of the vocal cords' and is increasingly used by young women - as in 'Motherrr' or 'Whateverrrr.'
And the article touches on the use of like for emphasis -- It's like, amazing! -- and goes on to draw some interesting (to me, at least) conclusions about why girls and young women adapt these speech patterns.
Me, I'm still stuck in the speech patterns of my youth. I think all this stuff is neat. Or cool. But not groovy. I never got comfortable with groovy.