To fight in a superheroic or crazy way.

Errol Flynn was the star of various adventure movies like robin hood, captain blood, etc.

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

Step-cousin of the Dirty Sanchez, the Errol Flynn also involves jamming a finger in the girl's ass while doing her doggy style. You then pull her hair back to give the Errol Flynn slicked-back swashbuckler look and apply a pencil-thin brown mustache to her upper lip.

Unlike a Dirty Sanchez, the Errol Flynn involves use of the pinky finger and not a thumb.