Howdo
A country hello that includes a 'how are you?' and at the same time saying "Howdy" to a close friend.

Used by white teens when greeting each other in a polite and sometimes flirtatious way.

A sexy cowboy way of saying hi to a hot girl

Guy: Howdo? Bin'a long time. You still lookin mighty fine.
Girl: *blushes* Thanks, you look right dandy yourself 