When you can't fart because you're afraid you're going to poop your pants. This usually occurs when you've had food from a shady restaurant or have been tight-cheeking it all day.
Frannie: How are you today, Tom?
Tom: It's been a rough day. I ate Chinese last night, and now I've got cautionary anus.
Tom: It's been a rough day. I ate Chinese last night, and now I've got cautionary anus.
by Amazin' Eddie January 22, 2014
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