The hair grown on the face of a pubescent teenager, young man or a eshay who has never matured.
"That's not a beard champ, that's bum fluff "
When you can't remember the name of a person, place or thing. Short of what's it called
"Your mum's seeing whatsi"
"She lives near, you know the whatsi"
"Hey can you chuck me the whatsi"
Used to describe blending, mixing or churning.
"Chuck it in your blender & give it a quick wizzle wazzle"