When a woman (or male) is wearing granny-panties or other larger undergarments, they bunch up and you can see them through their pants.
Dude, look at that girl, you can totally see her scrumbles through her jeans. Gross!
When the dranduft of various food particals are too small to be scraps but too big to be crumbles.
The scrumbles fell out of the toaster when it was turned upside down.
I hate cleaning up after toddlers eat because their scrumbles are always so sticky.