It’s the most wonderful time of the year for hip-hop fans who love messy beef, and Lil Pump just played the role of Santa Claus, trashing Eminem in a Thursday Instagram video despite having no apparent reason to do so.

“F**k Eminem. You is lame as hell, ain’t nobody listening to your old ass,” Pump said in a video posted to his Instagram story. “You lame as f**k, b***h! I woke up on bulls**t today, I’m back on my f**k s**t.”

It’s unclear what motivated Pump, born Gazzy Garcia, to diss Eminem, who on Friday released his new surprise album, Music to Be Murdered By – Side B. The 48-year-old rap veteran takes jabs at several different subjects on his latest project, though he does not explicitly diss Pump. (Eminem did take a swipe at Pump on his 2018 Kamikaze track “The Ringer,” mocking the young MC’s “Gucci Gang” flow and trashing the mumble rap genre with which Pump is largely associated.)

Nevertheless, Pump’s tirade ignited a social media firestorm, and not necessarily in his favor. “Lil Pump” quickly trended on Twitter in the United States, as thousands of people clowned on him for dragging Eminem’s name through the mud in a bid for relevance.

Others happily debunked Pump’s insults by comparing Spotify screenshots that showed both artists’ monthly listeners. On one streaming service alone, Eminem is roughly four times more popular than Pump, earning 38.716 million monthly listeners to Pump’s 9.52 million.

Several hip-hop luminaries also came to Eminem’s defense on social media.

“To Lil pump : Last time i was in the same building as @Eminem it was a 2019 stadium w 63,623 paid fanatics,” Public Enemy cofounder Chuck D tweeted. “This was 2 weeks after opening up a concert of 750,000 in Milan Italy. I mean people can make up whatever in their individual heads but promoting your mind as truth is crazy.”

Rapper and longtime Eminem collaborator Royce da 5’9” was less diplomatic on Instagram.

“I’ll slap them glasses so far off [Pump’s] face, they’ll land in a whole nother genre,” Royce wrote. “Not cuz I’m mad but just cuz I’m exhausted with all the tuff talk from all these harmless creatures… Enjoy yourself. You actually make money off blatant misappropriation while not being really good at anything.”

Pump is no stranger to running his mouth just to get a rise out of critics. But perhaps he was also being a sore loser in regards to both rappers’ conflicting political affiliations. Eminem made a highly publicized, last-minute endorsement of President-elect Joe Biden last month, while Pump stumped for President Donald Trump on social media and at a rally (where he suffered the indignity of being called “Little Pimp” by the outgoing president).

It’s possible that Pump was trying to goad Eminem—who has a historically short fuse and can harbor a grudge like few other rappers—into firing back at him on record. But will Eminem actually do it? And more importantly, should he?

That answer depends on how you interpret Eminem’s latter-day diss tracks. On one hand, dissing Pump would be far beneath Eminem, and devoting one iota of energy to this one-sided beef would be scraping the bottom of the barrel. Eminem is the bestselling rapper of all time and the only artist to debut 10 consecutive albums at No. 1 on the Billboard 200. Pump is a one-and-a-half-hit wonder who hasn’t cracked the Top 20 of the Billboard Hot 100 since his 2018 Kanye West collaboration, “I Love It.” His 2019 album Harverd Dropout debuted at No. 7 with a limp 48,000 units. That’s about half of what Eminem’s Music to Be Murdered By is projected to earn in its first week, despite not even being a new studio album, but a deluxe edition of his last effort.On the other hand, those stats would give Eminem plenty of ammo to eviscerate Pump in a diss track. Eminem got a lot of mileage out of trashing mumble rappers on Kamikaze with cuts like “Not Alike” and “The Ringer,” and his 2018 beef with Machine Gun Kelly was simultaneously one of the funniest and trashiest feuds of the year. (Em also scored a No. 3 hit with his second MGK diss track, “Killshot.”) Eminem could squash Pump like a bug if he wanted to, and it would arguably be the lowest-hanging fruit of his career. The 20-year-old “Gucci Gang” rapper probably doesn’t warrant a response from one of the most celebrated figures in hip-hop—but when has that ever stopped Eminem?