When your anus has gotten wet from splash back or you have cheap toilet paper, then as you wipe, your finger goes through the toilet paper into your anus and feces.
"Damn-it! I was trying to wipe my ass and my finger broke through the toilet paper! I got a nasty case of Danger Finger"
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.