Stealing words

I'm playing Tamil songs on the computer and busting my moves

Sempi: Appa why does this song keep saying 'poop'.

Me: Haha. It's not saying 'Poop', it's saying 'poo'. I guess that's not any better. In Tamil 'Poo' means flower. They're singing about a flower.

Sempi: 'Poo' means flower? 

Me: Yeah. But to be fair we had that word a long time before English. English stole it from us. 

Sempi: How do you steal words? 

Me: Ok. I was just kidding. Tamil people heard the sound 'poo' and decided it's such a beautiful sound, we'll use it to mean flower. English people heard the same sound and figured it's a fitting word for excrement.

Sempi: What's excrement? 

Me: Sigh...