You probably already know this song from the famous Korea Drama Full House.

Words

곰 Bear

마리 Animal (counter)

세 Three

집 House

아빠 Dad

엄마 Mom

애기 Baby

뚱뚱하다 Fat

날씬하다 Slim

너무 Too, very

귀여워 Cute (casual)

으쓱 Sound describing shrugging shoulders

잘한다 Very good (plain form)

Phrases

곰세마리 Three Bears

곰 세마리가 한집에 있어 There are three bears in a house

아빠곰, 엄마곰, 애기곰 Papa bear, Momma bear, Baby bear

아빠곰은 뚱뚱해 Papa bear is fat

엄마곰은 날씬해 Momma bear is slim

애기곰은 너무 귀여워 Baby bear is very cute

으쓱 으쓱 잘한다 Eusseuk eusseuk very good