expose oneself

Verb

expose oneself (third-person singular simple present exposes oneself, present participle exposing oneself, simple past and past participle exposed oneself)

1. (euphemistic, idiomatic) To display one's genitalia or female nipples in a public place or in other inappropriate circumstances.
   • The police arrested the man who had exposed himself in public.
   • On Thursday the police in Miami Beach arrested the man, Weston J. Hill, 44 years old, charging him with indecent exposure. . . . He had been charged with exposing himself to children.1985 May 5, “Offender's One-way Ticket Stirs 2-city Feud”, in New York Times, retrieved 27 Apr 2014
2. (idiomatic) To put oneself in a vulnerable position.
   • The soldiers exposed themselves by moving into unfamiliar territory.
3. Used other than figuratively or idiomatically: see expose.