A common word overused by kids in junior high, almost in the same group with "LOL" and "random!". Used to try and impress your preteen friends after or during a long pause between conversations. Also used by idiots whenever there is a pause in speech. Sometimes accompanied by a hand motion resembling a turtle or a turkey.
Teen 1: ...and that's what I did last Saturday!
Teens 2, 3, and 4: ...okay...
Teen 5: ..aaaaawkwardddd...
Remember kids, lack of conversation isn't awkward until you actually say it is.