The act of making love to an asian woman from behind in the rectum, and as the woman turns around you realize she has a penis. 85% of the time a donkey punch will result.
Last time I was givin' it to Sook Yin Lee in the ass she spun around and gave me a shanghai surprise! I'm not going back to china.
by chuck rogers May 13, 2008
An explosive device. A booby trap. A package bomb. A hand-tossed grenade.
Long before George Harrison, Sean Penn and Madonna and the movie they made by that name, a Shanghai Surprise was a home made bomb used by the Chinese tongs or gangs. The expression probably dates from the late 19th or early 20th century. While I cannot cite chapter and verse of it's origin, I'm older than Madonna and understood the expression at the time the movie was made. Not everything is about sex, kids. That's why I unsubscribed from the UD.
by The Twentieth Man April 10, 2011