'oh, well' is an interjection that means 'i could not care less.'

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

It originally means, Really, Okay, before people used it. At times when they don't have the correct words or sentences to say what's on their mind.

When you are finished with a conversation and want to just give up the whole convo...