Wiktionary
vb. (context idiomatic euphemistic English) To display one's genitalia in a public place or in other inappropriate circumstances.
Usage examples of "expose oneself".
Though it might seem foolish to admit such dangerous wavelengths as the gamma and X ray wavelengths, the common decision has heen that it is far better to expose oneself to a little background radiation than it is to have one's shield emitting dangerous radiation during a fight, possibly endangering unshielded bystanders.
The Swiss, observing all this, conclude that the sensible way to conduct one's life is not to shun risk but to expose oneself to it deliberately.
To be alone, without possessions, without renown, with none of the advantages of our own culture, to expose oneself among new men and amid fresh hazards.
It is one of the excruciating delights of the mastery to expose oneself fully to, and yet skirt, the dangers of the girl's beauty, to keep oneself strong, to draw the absolute fullness of pleasure from her, and yet to resist her wiles, to get everything from her, and yet to keep her on her knees, completely.
It is one of the excruciating delights of the mastery to expose oneself fully to, and yet skirt, the dangers of the girl’.
Does one deliberately expose oneself to his power if one has the chance not to?
He, to whom it was merely stupid to expose oneself to possible fire, had completely misunderstood her.
It was impossible to get the command ships within range without coming close enough to expose oneself to concentrated fire from everywhere in the disk.