A collection of awesome Twitter hash tags and accounts, plus inspirational Tumblr accounts.

Kang-in (stage name) is a Korean pop singer, actor, presenter who officially enlisted and began his two year military service on July 5, 2010. People use this hash tag to say goodbye and wish him all the best. Example “Wish you all the best and please take care #KanginHwaiting”

I think it originally comes from one of the iPhone app commercials, nowadays people intend to use this phase when they are wishing/hoping something is real; however, some people use it as the first word of their app advertisement tweets. Examples: “#ThereShouldBeAnApp That can get some sleep for you.