If you mean "bebeğim" and "akıllım" with these words, I will try to explain.
bebek = baby, my = benim, bebeğim = my baby
For example one can say "Bebeğim üç aylık." =My baby is 3 months old.
but it is also a love phrase. No boy call a girl "bebeğim" if they are just friends.
smart = akıllı, zeki
Akıllım is a sarcastic but not annoying word, it is like a joke.
for example your friend say "Bugün okula gitmeyeceğim" =I won't go to school today. but you know that there is an exam soon and she can't be succesful, if she doesn't attend this class. and you may say "Akıllım, peki sınavı nasıl geçeceksin?" =You smart, then how will you pass the exam?
We generally tell this word if someone takes silly decisions over the best possible ones.