boy treasure
A young, innocent-looking boy (often of prepubescent age and with a nice firm ass) that is available for exploition by obese men and Star Trek/science fiction fans (which is pretty much the same thing when you think about it!)
Two men passing a primary school might comment "my-my, there's some mighty fine looking boy treasure in there. Yes sir-e!"
Treasured boy
For a male to like the same sex, to be gay, a "fag", a homo-sexual
If a man/boy is a treasured boy then he is homo-sexual and will used the term treasured as a way to say he's homo in secret so noone knows. This way he can openly express himself.
National Treasure Boy of Korea
“This is Kim Sunoo, a national treasure boy whose face contains all 24 seasons of Korea's beautiful four seasons.”
Kim Sunoo National Treasure Boy of Korea indeed