a bullshit rule,

a rule we took on not through rational choice but through imitation, conditioning and many other different ways, a pattern we're all operating in. Brules are like university education is absolutely necessary to have a decent career, every woman needs a man, 9-to-5 is how work should be, religion is needed for salvation, the pursuit of money is inherently bad, we have different roles and functions in society based on whether we're male or female, aging is a natural part of life, success equals hard work, love is painful, be realistic in your goals and so on. For almost every brule there's research, there're studies, there're new thinkers who are showing that these social rules are no longer true.

the feeling in your gut after a heavy night of drinking; a brule diarrhea feeling

Used interchangibly with rule.

In reference to jizzing on your partners face then quickly and unexpectedly putting your ass in front of their nose and igniting a fart

To give someone completely obvious and needless advice/criticism.

brule means if someone is unattractive
e.g= butters
= minger

When you vomit your insides all over a sink or bathroom floor, forming a nice even coat... like a creme brulee.