Blac Youngsta Raps Next to Tomb with Young Dolph's Name in Music Video

Blac Youngsta is either clueless or he's gonna have a wave of hate coming his way from Young Dolph fans after posing next to a tomb with the late rapper's name on it in a new music video.

Youngsta -- who was a known enemy of Dolph -- released the video for his song "Im Assuming" Monday, filmed almost entirely in a cemetery. While it's very brief, around the 1-minute-mark of the video, you see the last name Thornton on the tomb he's rapping in front of ... Dolph's real name was Adolph Thornton Jr.

While the song's lyrics don't seem to directly talk about Dolph's death, they're certainly violent -- "I been a street n**** that murder s*** ... I'm on the verge, 'bout to purge with the young n*****. They stackin' bodies."

Blac Youngsta and Young Dolph had a very nasty history, back in 2017 BY turned himself in to cops investigating a Dolph shooting in Charlotte ... and he was also named a person of interest when Dolph was shot in L.A. later that year.

Charges against BY in the Charlotte case -- where more than 100 rounds were fired into an SUV Dolph was traveling in -- were dropped for lack of evidence.