"I uh O bot"

Today in the van as we were taking Marinn to school Shaw started saying a phrase over and over in a funny voice.   It went something like this....
"Ma Ma... I uh O bot Ma Ma.... Ma Ma... I uh O bot Ma Ma.... Ma Ma... I uh O bot Ma Ma.... "
I was sitting there listening trying to figure out what he was saying and when I realized I couldn't help but laugh out loud.  He was trying to say, "Momma, I'm a robot."  The girls say this on occasion and I guess he was feeling robotty in the van.  The best part was his perfect robot voice!