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1.
Extremely hot.

Another word with the same meaning as cool or pro.
"That soup is molten."

"I wish i was molten."
by (Thomas C.) July 10, 2008
 
2.
Not baked, not scorched, but molten! Basically, it means you're so high, that it looks like your face is melted.
"Yo, that nigguh is molten! He so high it look like he had a stroke!"
by FacialParalysis420 July 13, 2013