When we use "like" unnecessarily as has been happening more and more in recent years, such as in the following sentences: "it's like really nice" or "she like dances and stuff", what do we call this "like"? I've read it can be a conjunction on Dictionary.com but I am unsure.
19. in the same way as; just as; as:
It happened like you might expect it would.
He acted like he was afraid. The car runs like new.
21. Informal. (used especially after forms of be to introduce reported speech or thought): She's like, "I don't believe it," and I'm like, "No, it's true!".