Language Acquisition

Felix is doing so well learning English! Saying that, there's been some rather funny moments when he tries out new words or phrases. And the majority of the time, MK doesn't know any better so she joins in. Here's a few examples I heard today...
1)They come downstairs in costumes carrying a bucket and simultaneously say... "Tricka Trees!"
2) A serious game of good guys (MK and Felix) vs. bad guy (Roger) was going on. Roger was in one room and I hear Felix whisper to MK..."Come on sister, tic toc!" And off they "tic toc" (tip toe) to the other room.