Quote Originally Posted by Beeblebrox.420
It's spelled sinsemilla. It's from the Spanish and means literally, without seed. Sinse bud is weed from unfertilized females with no seeds in it.
¡Muy bien, tienes la ortografÃ*a correcta!

The sin means "without", related to the word sans from French. And semilla means "seed", related to words like semen, seminal and seminary.