Hickey came out as a lesbian at Hannah Gadsby's Pony Club in Adelaide in August of 2011, discussing it further on The Poofcast with Adam Richard.
Geraldine has appeared on The Little Dum Dum Club three times. Her first time as a guest was on their seventh episode. It was posted on December 8th, 2010. She returned nearly two years later on an episode with Luke McGregor, the 96th overall. She appeared alongside Xavier Michelides on the show's 152 episode.
Hickey was also notably the first woman to appear on The Little Dum Dum Club, as well as the second LGBT person (the first being Tom Ballard).