Watch the moment a mother-in-law is slammed for ‘Karen’ reaction to gender reveal & people say husband’s a red flag too

A MOTHER-IN-LAW has been "slammed" for her reaction to a gender reveal.

A British couple were so excited to find out the sex of their first ever child, but the mum-to-be was left fuming after her husband's mother 'ruined' the moment.

In a video shared by the @itsgoneviral TikTok account, the excited couple can be seen pulling on a confetti canon and jumping for joy when pink paper flies out of the canon, indicating that they are going to have a baby girl.

The mum-to-be turns to give her husband a hug but is taken aback when her mother-in-law barges past her and jumps on to her son, knocking him on to the sofa as she envelopes him in a tight hug.

"She's gonna be like her nanny, she's gonna be like her nanny", the grandmother-to-be cries, as she continues to tightly wrap her arms aro