Our new word

In comparison to how much Lexi Kate talked at this age, Sam says very little. In fact, he only says "Momma" when he is VERY desperate. He frequently says Dada, Daddy, Kate Kate, Chi Chi, and Ni-Ni (night night). But, today his new word is "stinky". Come on, you can say "stinky" but you won't say "momma". When I go to change his diaper I always 'smell' and say "does Sam have a stinky?" Here, lately there have been lots of "Oh yes, Sam has a stinky" responses. So, now he has caught on. The last 2 days when I have picked him up to change his diaper he will start saying "stinky".