DDG is leveling a pretty serious accusation against his ex Halle Bailey ... and it all revolves around their child.

The rapper, born Daryl Dwayne Granberry Jr., slammed Halle recently when he claimed he's not allowed to see his son, Halo.

DDG first brought up the alleged situation on Friday when he posted to X ... “been fighting to see my son for months now… shoutout to all the Dads who try their best to be there. this s*** sucks.” He eventually scrubbed that post from his account.

Not long after, DDG hopped on a stream to explain that he had been trying to handle the alleged situation quietly ... but he was too frustrated now and wanted to vent publicly.

“I really feel like I’m a f***ing nanny at this point. The nanny has been able to have my son more than me. And I don’t even know the nanny name. Like, it’s just not fair bro. So I have to come on here and I gotta do this s***,” DDG told viewers.

Taking the situation to court is a real possibility DDG said, adding he's keeping track of the days that go by without seeing his boy.

According to BBG, if he and Halle are not on "perfect terms," then she uses co-partnering as a weapon.

During better times ... the couple celebrated Halo's 1st birthday in December ... after the couple broke up in October.

We've reached out to Halle for her side ... so far, no word back.