Her slip 'peeked out' from beneath her skirt. [=a small part of her slip could be seen beneath her skirt]
We saw a 'sneak peek' [=a brief showing] of the movie that will be released next month.
They tried to 'sneak a peek' at the actors getting ready behind the curtain.
(..) It's Hendrix! Ah! No! - No! I gotta get outta here! Hey, have you seen the Sheriff? Oh! Oh, my gosh. - Hey, what are you doin'? - Get a good peek, city boy? I just need my daily gas ration from the Sheriff. Wait for him at Flo's. Get outta here. I've been trying to get outta here for three days! (..)2006 Cars