When you eat spicy food and it results in you having to take a massive shit. This occurrence usually lasts 10-30 minutes and will leave you in anal pain half the time. It usually burns quite hard and is diarrhea in most cases.
When someone is acting like something (a dick) is up their ass, you tell them to shit a Richard. Another way of telling them to get their panties out of a bunch.
A saying that means “you are going to do something all night long”, just like his song. Lionel Richie, All Night Long, overnight, all night, to the limit, to the max