Literally: not to be worth that much; literally expresses that something does not amount to a great deal.
2.
SpainLatin Americainformalcolloquial
Figuratively: to be not so serious, important, or remarkable; used to downplay a situation, event, or quality, implying that it does not deserve excessive concern or praise.
Examples:
ES: No nos precipitemos. Los hombres como Jim Júpiter pueden no ser para tanto.