1.
Used in an argument when someone has made a good point and the other
person doesn't know what to say.
2.
Used before a sentence when someone is not sure what to say. Usually repeated by another
person.
3.
Used by teenage
girls and gay men in the middle of a sentence to emphasize a the point. See like
4.
Used by someone in a conversation if it doesn't matter.
5.
Used by someone in a conversation if they don't care.