A laugh created by Sean Thoman and coined by Craig Ryan, is a laugh which is unexpected, ceased early, and performed by using two overlapping partials of the voice. It is sometimes performed when at a loss of words due to an unexpected greeting or question.
Hahn is the last name of the DJ from the Alternative Rock/Hip Hop band Linkin Park (Often tagged Mr Hahn or Chairman Hahn).
Most famous for his songs "Cure for the itch - Hybrid Theory" and "Sessions - Meteora"
To be someone's friend exclusively for the purpose of becoming connected to their girlfriend so that when a break-up occurs, you can get together with her.