Quick que is a pass you can pay extra for (I think it's like $20.00 more) and it allows you to go in a different line that would allow you to board much faster. (I guess similar to fastpass at Disney). However, I just went to the Sea World website and I didn't see a mention of this on their site. I do remember reading it somewhere though because we had even decided to pay for it for my DH & DD, but not for me since I don't really ride the thrill rides.
The poster before this one indicated you can buy them the morning you arrive at Sea World. I know they post a lot and know a lot about the Orlando parks and even write articles, so I'd take their word for it that Sea World is still offering. However, don't take my word that it only cost $20.00. I do remember thinking it seemed reasonable to me.