(n.) The outcome of a male ejaculating into a rubber, and after doing so, chucking it at the face of an unliked person.
Note: Could be given to one who dresses up as an actor from the hit show Grey's Anatomy, specifically the Korean Nurse & likes Patric. P.S. Thao is uglier than Sandra Oh >=]
I totally gave Thao a Vietnamese Hand Grenade.
Kevin Tran likes to recieve Vietnamese Hand Grenades.
Theresa Hang enjoys an occasional Vietnamese Hand Grenade, especially those given by Andrew Bui.