Because I said so!
An imperious reply that an authority figure --- most often a parent --- impatiently tells someone under his/her care when he does not wish to admit that there is literally no good/valid reason why said dependent should have to comply with the directive, but the authority figure doesn't want to admit it.
Kids are smarter than you think --- if you tell them, "Because I said so!" even just once, they will never trust your judgement again.
Because I said so! by QuacksO October 30, 2018
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