By Alexis Tereszcuk - Breaking Celebrity News Entertainment Editor

Teen mom Bristol Palin admits that she’s doing a “terrible” job when it comes to disciplining her three-year-old son Tripp Johnston and in this shocking clip from her reality show Life’s A Tripp she actually breaks out in laughter after he uses the f-word.

As Bristol and her sister Willow Palin tell her son that he can’t swim in the pool at the hotel where they’re staying in Phoenix, he has a small tantrum, which ends with him using a nasty word.

“I hate you,” he whines to his Aunt Willow and smacks her on the arm.

He then says “Get away you f***,” according to the caption in the show, but it sounds like he uses the gay slur fa**ot.

Bristol and Willow laugh as the toddler swears, covering their mouths to try and hide their amusement.

Gawker reported that the showrunner told them that he was in the room and Tripp said the word f**k and not fa**ot.