An acronym meaning "Dyed Hair Don't Care"
Often used as justification for irrational or unexplainable behavior which may have offended others.
Popularized by a collection of Michigan teenagers in response to a female's choice to dye her hair bright red despite parental disapproval.
Mikhail: "Hey Ashley, why do you have sex with so many guys?"
Mikhail: "Hey Ashley, why did you call my girlfriend a cunt?"