In her maiden speech, Hanson proposed a drastic reduction in immigration with particular reference to immigrants from Asia. Hanson criticised the Aboriginal and Torres Strait Islander Commission (ATSIC). Condemning multiculturalism, One Nation has railed against government immigration and multicultural policies. After Hanson was elected to Parliament in 1996, journalist Tracey Curro asked her on 60 Minutes whether she was xenophobic. Hanson replied, "Please explain?" This response became a much-parodied catchphrase within Australian culture and was included in the title of the 2016 SBS documentary film Pauline Hanson: Please Explain!.
It's an Aussie reference to this:
https://en.wikipedia.org/wiki/Pauline_Hanson
She's pretty appauline.