A play on the word "Photoshop," the software graphics program created by Adobe, it refers to anything being "touched up" or digitally manipulated. For example, "Did you see that magazine interview with Cher? Not only has she had major plasto but they  photoshopped her to look like a tween."

Historical perspective: On October 1, 2017 France announced all commercial photos that have been digitally retouched will now have to bear the label ‘retouched photo’ in accordance with a new French law that aims to combat unrealistic body images and eating disorders.

See also : rasterbator  
NetLingo Classification: Online Jargon