The term can be used both as a noun ("hitting the bonk") and a verb ("to bonk halfway through the race"). This condition is also known to long-distance ( marathon ) runners, who usually refer to it as "hitting the wall". It is also referred to as the "green grass" as pupil dilation causes vivid hues to appear. (Wiki) After only three days back from vacation and I've already hit the wall. I would have thought that I could have lasted a week...maybe two. No such luck. I am tired! The new baby (my computer) still hasn't arrived. I really want it to come...and soon! I miss having a computer at my disposal. Soon come...soon come.