The Giggle v Tickle case was a landmark Australian legal decision that clarified how sex discrimination laws apply to transgender individuals. The case involved Roxanne Tickle, a transgender woman who was removed from Giggle for Girls, a women-only social media platform, after the app's founder personally reviewed her profile and determined she didn't appear sufficiently female.

Evidence from the case showed that Tickle's profile had initially passed the app's artificial intelligence verification system, which was designed to identify women users. However, founder Sal Grover later intervened to remove Tickle based on her appearance in photographs. This led to legal proceedings under Australia's Sex Discrimination Act, with Tickle arguing she had been discriminated against based on her gender identity.

The Federal Circuit and Family Court of Australia ruled in Tickle's favour, finding that she had been indirectly discriminated against. Research into discrimination law indicates that indirect discrimination occurs when policies or practices appear neutral but disproportionately affect particular groups. The court awarded Tickle $10,000 in damages plus legal costs, recognising the harm caused by the exclusion.

Legal experts note that both parties have lodged appeals for different reasons, indicating the case's ongoing significance for discrimination law in Australia. The decision reflects broader legal developments worldwide regarding how existing sex discrimination legislation applies to transgender individuals and digital platforms.