Greek Wave 

To swing your penis in a circular motion, similar to a 'helicopter', upon first greeting a new acquaintance.

I went around Trueman's friends house last night, I was barely through the door when he Greek waved me.

Greek Wave by badmanR May 20, 2009

Green Wave

Green Wave or Green Movement refers to a series of actions after the 2009 Iranian presidential election, in which protesters have demanded the removal of Mahmoud Ahmadinejad from office. Green was first the symbol of Mir Hossein Mousavi's campaign but after the election, it became the symbol of unity and hope for those asking for annulment of what they regarded as a fraudulent election.

Iran's Green Wave took place in 2009

Green Wave by Redfo May 24, 2010