temperament or disposition; "a person of hot blood"
the fluid (red in vertebrates) that is pumped by the heart; "blood carries oxygen and nutrients to the tissues and carries waste products away"; "the ancients believed that blood was the seat of the emotions"
people viewed as members of a group; "we need more young blood in this organization"
smear with blood, as in a hunting initiation rite, where the face of a person is smeared with the blood of the kill
underestimate the real value or ability of; "Don't sell your students short--they are just shy and don't show off their knowledge"
sell securities or commodities or foreign currency that is not actually owned by the seller, who hopes to cover (buy back) the sold items at a lower price and thus to earn a profit