a skin flap found between a woman's vagina & her asshole, namely, on her taint. gives the appearance of a tail, or a tiny penis...
taint + tail = taintle.
"Dude, i slept with this chick last weekend, and she had a wicked taintle! does that make me gay?"
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.