HHA
HHA is a High Helicopter Ambulance which spends most of it's time getting damaged patients on to the mainland.
I'm a Doctor, I've seen the X-ray, I THINK he's got to have an HHA to get him on the mainland ASAP!
hha
Half-assed haha. Coldest message you can receive from someone... If you receive a "hha" You should run away from the computer !
hha