Ok, so I tried everything from adding things to my personal dictionary to trying to figure out how to add them under swipe settings>my words>edit my dictionary but I couldn't seem to get anything to work. But I figured it out!! From your home screen go to settings>my device>language and input> then select the cog next to swipe>my words then check mark cellular data, contribute usage data, and living language. After that, go into your messaging and type in your favorite four letter word, hit space and in the suggestions box "add **** to dictionary will pop up and you just add. Remember, it is case sensitive so I just made sure it learned them in lower case so it wouldn't capitalize it every time. Thanks for the tips from you guys, I wouldn't have been able to work my way to the solution without you!!