This one probably applies to the younger generations who simply say "are we going out - out?" as opposed to clubbing. You'll probably hear your parents talk about the days of when they went clubbing but no one really uses that phrase anymore. People usually just say 'are we going out?' or 'do you want to be voldemortal tonight?' To which the reply is always a huge, resounding, 'obviously.' But maybe it's not called clubbing anymore because you don't need to be a member in order to gain access. Any Tom, Dick and Harry can enter a bar or a club of their choice, no membership or secret society required.
