I also hate like.
This morning I was waiting in a restaurant beside 4 college age women. Their conversation was peppered with "likes".
As in "I registered for, like, ecological ethics, and the prof said, like "are you sure you want to take this course?" Like, yeah! It's, like, a pre-requisite."
And on and on until I was ready to scream. I hope they rid themselves of this habit before graduation. Any employer would think twice before adding them to the team.
Similar pet peeves. "Ya know?" "Really?" and uptalk. People who use them invariably overuse them.