gordito
chubby
gordo
fat
+
-ito
diminutive suffix (little, small)
Gordito means chubby and can be thought of as gordo0 (fat0) + -ito1 (diminutive suffix (little, small)1), so it's a softer, more affectionate way of saying 'fat'.
adjective
- chubbyA little chubby or plumpEl bebé tiene las mejillas gorditas. // The baby has chubby cheeks.
noun
- chubby personA chubby or plump person (used affectionately)Mi abuela siempre me llama 'gordito' con cariño. // My grandmother always affectionately calls me 'chubby'.