The phrase "gotten eyeful" is an informal way of describing a situation where someone has seen something they may not have expected or wanted to see. There are many synonyms for this phrase, including "caught a glimpse," "spotted," "noticed," "witnessed," "observed," and "viewed." Each of these synonyms can be used to describe a situation where someone has seen something unusual, shocking, or even beautiful. Using these synonyms can help to make your writing more varied and dynamic, and can add depth and richness to your descriptions. So next time you're describing a situation where someone has "gotten an eyeful," consider using one of these synonyms to spice up your writing.