Caitlyn Jenner: 'My grandkids call me Boom Boom'

Caitlyn Jenner. (Photo: Getty Images/Gallo Images)
Caitlyn Jenner. (Photo: Getty Images/Gallo Images)

Cape Town - Caitlyn Jenner's grandchildren call her "Boom Boom", to avoid confusion when it comes to gendered terms following her gender reassignment surgery.

Caitlyn has 19 grandchildren. 

But the former Olympian - who has six children of her own, and helped to raise Kris Jenner's four children during their marriage from 1991 to 2015 - doesn't mind her kids still calling her "dad", because she says she'll "always" be their father despite her transition.

Compiled by Graye Morkel