When it comes to rappers you don't want to mess with lyrically, Royce 5'9" is one of them. But while many avoid dissing Royce on wax, you may not want to throw shots at him on Twitter either. After a fan criticized the Detroit spitter's verse on Eminem's "Not Alike," Royce fired back in a vicious way.

"Never rap on a TAYkieth (sic) beat again. You struggled the whole track lmaooo," a fan tweeted at the rapper about his verse on the Em, Ronny J and Tay Keith-produced song off of Shady's Kamikaze album. While some would let the comment go, Royce had time to respond. "Only thing I struggle with is being a alcoholic... Now go finger your mother," he replied.

It's tough to see where exactly Royce "struggled" on "Not Alike," when he's spitting bars like, "Everybody doin' chick joints/Probably rob these little dudes at fist point/Remember everybody used to bite Nickel/Now everybody doin' Bitcoin."

Eminem surprised everyone on Friday (Aug. 31) when he dropped his 10th studio album, Kamikaze. A follow-up to 2017's Revival, Em takes aim at the critics of his last project and even disses a number of rappers including Joe Budden, Lil Yachty, Lil Pump and Tyler, The Creator.

In May, Royce dropped his own album, Book of Ryan. A follow-up to Layers, the 20-track project includes guest appearances from J. Cole, Pusha-T, Eminem, Jadakiss, Robert Glasper and more.

Check out Royce 5'9"'s tweet below.

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