A phrase used to describe that awkward moment when you have to dump so bad that the poop has actually exited your anus and is toucing your tighty whitey Hanes cotton underwear.
Andy: Hey Floyd, you gotta pull over. I have to take a dump.
Floyd: Can't you wait 10 more minutes!! We're almost there.
Andy: No Floyd, I can't wait!! I'm touchin' cotton!!!
I didn't ride a single water ride at the amusement park, but you would have thought I had ridden them all if you would have seen my soggy cottonbottoms.
A pre fellatio interaction involving an individual's mouth lacking lubricant qualities giving another individual oral sex with said non lubricated mouth.