add insult to injury

:  to join or unite so as to bring about an increase or improvement

:  to say further :  append

:  to combine (numbers) into an equivalent simple quantity or number

:  to behave with pride or arrogance :  vaunt

:  to treat with insolence, indignity, or contempt :  affront

:  to affect offensively or damagingly

:  a gross indignity

:  injury to the body or one of its parts

:  something that causes or has a potential for causing such insult

:  an act that damages or hurts :  wrong

:  violation of another's rights for which the law allows an action to recover damages

:  hurt, damage, or loss sustained