If there was ever someone who has no need for “dump bags” or a slow cooker it’s Rebecca Meldrum - she doesn’t work, she’s at home the majority of the day. She can/should be able to prepare and cook a meal for her & the family without the need to pre-prepare it or use a slow cooker.
and yes, she’s 100% using the “dump bag” term so that people ask what it means (“so so many of you have been asking about my dump and how I bag it up so I thought I’d do a video on it to show you all!!” - after heR chat about taking a shite in the cafe toilets this could actually be about her own dump or a freezer bag full of meat/veg!!)