Orally Challenged
This is when you are beyond autistic to the point in which you cannot speak. People who are orally challenged tend to lick their shoulders and spunk fairly often.
Yo dude you are so orally challenged
Spicy oral challenge
A contest where two individuals eat a spicy pepper and then perform oral sex until one of them can no longer continue
"I picked up some ghost Chili's, let's do the spicy oral challenge."
"Sure, loser buys dinner!"
"Sure, loser buys dinner!"