It is when you go to someones house and ask if you can use there washroom. If the "someone" is polite they will let you use there bathroom. At this point in time you go down to sit yourself comftorably down at the potty and as taking a shit you miss and hit the cat unexpectadly. The cat then dies at the intensivly deadly toxins.

a phrase chiefly used in northern England.

it is a contracted form of "it'll be reet", where "reet" means "alright" or "OK".

living your life according to "be reet" is the only way to find happiness in life.