get an eyeful
To see a surprising or unexpected sight. I sure got an eyeful when I walked in on Al while he was trying on his artichoke costume.
eyeful (of someone or something)
Fig. a shocking or surprising sight. (*Typically: get ~; have ~; give someone ~.) The office door opened for a minute and I got an eyeful of the interior. Mary got an eyeful of the company's extravagant spending when she saw the bill for the executive board's catered lunch.
have/get an ˈeyeful (of something)
(British English, spoken) look carefully at something that is interesting or unusual: Quick! Come and get an eyeful of this!eyeful
n. the sight of something that one was not meant to see. I got an eyeful of that contract. Yikes! What a giveaway!