"My @Fathead decal is now available! If you pick one up, tag me in a photo of it," wrote Spieth on Twitter.
Unfortunately for the young Texan a handful of his fellow PGA Tour professionals hijacked the social media post and started taking aim at each other with a series of hilarious tweets.
Fellow American John Petersen (who gained fame in November last year when he launched a Happy Gilmore-style drive in a PGA Tour event) weighed in first, sarcastically informing Spieth he'd duck down to his nearest local sporting goods store Dicks right away.
"Sweet! Headed to @DICKS right now" wrote Peterson on Twitter.