Reese Witherspoon left fans in stitches when she revealed the unhinged nickname her youngest son has recently assigned to her. As part of an ongoing internet trend, the Legally Blonde star took to social media with a video of herself sitting on the steps of a trailer on set,

Reese Witherspoon reveals the unexpected name her son calls her instead of ‘mom’ - The ‘Legally Blonde’ actor shared the nickname in a recent social media video