When a man stretches his sack over a flashlight placed directly behind it, causing his scrote to glow red like a Chinese lantern.
Jake lit up that room with his Chinese lantern.

Jason transformed his batwing into a Chinese lantern with a flashlight.

Matt added some ambiance to the dinner party with his Chinese lantern.
by JbodJordyBabes July 9, 2010
This refers to a scrotum which hangs abnormally low resembling a chinese lantern.
That guys balls look like a chinese lantern.
by Notorious b.y.r.o.n June 9, 2009