so aggravating

It was just about 2 hours ago, when a certain 3 1/2 year old I knew...while ignoring what became pleas to clean up some toys before dinner so boldly stated "I KNOW already, stop aggravating me".  I have to admit, I did have to ask a couple of times because it was hard to actually understand the word at first, but then I realized it plain as day.  And, of course, I knew exactly where she learned it from.  One can only hear "John Jacob Jingleheimer SchITT" so many times before it becomes completely exasperating, or as is the case AGGRAVATING.