Reindeer Poop

I am slowly learning that I need to be more careful about what I say in front of my son. On Christmas my son was given a PEZ reindeer in his stocking. When he started playing with it I said "Its reindeer poop". Now all he ever does is call it "poop". He is always asking for "more poop" to put in his reindeer. I guess that serves me right.