I'm never quite sure if I took a great photo, until I get home and pull it up full screen... and even then, I still have to see how it turns out after processing....
But after all that, when I produce a ringer, its the same feeling as catching a big fish 😃 lol
Somewhat euphoric, two hands in the air, and Ta Da ! 😃 lol
—Fishchris on Digital Photography Review Forums
I thought it is like, 'a contestant you bid to a competition (such as an animal (a horse, a bull..etc.) or a robot, an athlete,' or as in here, 'a photo you submit for a competition'.
But, this ↓ definition says it means something like 'an athlete you illegally bid for a competition'... kinda?
An athlete or horse fraudulently substituted for another in a competition or event.