The highest one can ever get. Achievable when a sativa dominent strain is combined with an indica dominant strain to a bong, the only piece able to be used, and then have a 5 hour high. Symptoms include: everything feeling great, explosion of numbness in the feet, or craving of all foods.
"Hey Chuck, how your was brother's wedding?"
"I don't know, I got mega high 2 hours before, and forgot about the whole thing."