The term 'Tantrum Thrower' is used to describe someone who often throws tantrums or has outbursts of anger. The crossword solutions for this term are BRAT (4 letters), DIVA (4 letters), and PRIMADONNA (10 letters). A BRAT is a child who behaves badly and is often spoiled. A DIVA is a person, usually a woman, who is demanding and temperamental. A primadonna is an arrogant and self-important person who demands special treatment. All three terms can be used to describe someone who throws tantrums.