Learning like a baby

I've been realizing that I'm learning Korean like a baby learns a new language - just by picking up bits and pieces from hearing it all the time. 

Randomly a word will pop in my head. Sometimes I find myself repeating it over and over to myself, even out loud. Usually I don't know what the word means. I may have an idea but not always. "Borragi..." is one example. I hear it all the time used by people of all ages when they seem to be stuck as to what a word means... So this would be perhaps a good time for me to use it...

Borragi?...