opt out (of something)
To choose not to participate or be involved in something. I opted out of the guided tour, preferring to explore the city by myself. Students are free to opt out if they do not wish to be a part of the school performance.
opt out (of something)
to choose not to be in something. If you do that, I'm going to have to opt out of the club. Then go ahead and opt out.
opt out
Choose not to participate, as in Our school opted out of the state competition. [Slang; mid-1900s]
opt out
v. To choose not to participate in something: When she rented the car, she opted out of the extra insurance. Everyone on my baseball team is going to run in the marathon, but I opted out.