A rap war on Twitter has resulted in Lupe Fiasco considering quitting the hip-hop game.

It all began with a series of antagonistic messages from Chicago-based rapper Chief Keef in response to Fiasco's "Bitch Bad", which makes the demand that rappers reconsider using the word in their tracks.

Keef tweeted, "Lupe fiasco a h-- a-- n---- And wen I see him I'ma smack him like da lil b---- he is #300."

Keef says he was hacked, but apparently it shook Fiasco up enough to respond, "i have spoken peace only 2 receive vitriol and malice in return. My brother seeks destruction my sister seeks attention paths to nothingness."

Both rappers have yet to officially comment on the beef.

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