When you're trying to type quickly and use "ur" in a sentence and somebody corrects you saying it's in fact "you're", you
sarcastically reply with "mb, u're".
Like c'mon, when you're cutting down the word to type faster, the
application is obviously
supposed to be read within context and not needed to be corrected. In fact if you replaced "your" with "ur" instead nobody would ever correct you i.e. they'd only do it on the "you're" instance.