Fans of the Kardashians and pop culture alike were all wondering what name Khloe Kardashian decided to go with for her newborn son. Well, we now have that answer! Khloe and Tristan Thompson decided to name their new baby Tatum Robert Kardashian. The middle name Robert is in honor of Khloé’s father, who arguably was the first famous Kardashian. Tatum, however, is more of a mystery. Perhaps they named the child after Tristan’s former teammate, Jayson Tatum. Tatum and Thompson played together on the 2020-21 Celtics. However, Tatum is an old English name, meaning cheerful and full of spirit.