What does the teardrop tattoo (Photos) mean?

http://media.photobucket.com/image/lil+wayne+tattoo/dannellec/lil_wayne_new_face_tattoo.jpg?o=10 http://media.photobucket.com/image/tear 20drop 20tattoo/Rashian/101_0243.jpg%%? o = 3 I heard something about them are in jail but not exactly understand. Help?

If its supposed to mean how many times that person has been down …. meaning in prison, could also mean many people have died, but most likely is the thing from his prison.

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