On some phones, you can add words to the phones dictionary, works well in Android. Autocorrect is also good at highlighting  a person tastes from the autocorrects it does . 
<div><br></div><div>Take a look at native English speakers grappling with Autocorrect here <a href="http://damnyouautocorrect.com/">http://damnyouautocorrect.com/</a></div>