Here's the deal -- Drizzy hit the Instagram comments to defend Tee Morant over a meme criticizing his support for the Grizzlies guard throughout the playoffs, which some have deemed "annoying."

Drake was having none of it -- saying, "Imagine your son makes the league and he’s Ja Or Melo (Ball) or Lonzo (Ball) all you can do is be elated and competitive and over supportive and it’s a right of passage to that the OG’s talk s*** 😂😂😂😂."

"I know I’mma be this way even if my son is in a rubix cube competition 😎."

One troll thought it would be wise to crack back at Drake by referencing the rumor he doesn't write his own songs ... saying, "ya son prolly play with ghost writers."

Big mistake -- 'cause Drake fired right back in the most ruthless way possible.

"I just followed your girl cause she prob miserable and needs some excitement in her life."

Sheesh.

And, get this -- Drake wasn't kidding ... because the troll later posted a screenshot of his wife getting a DM from Champagne Papi himself, which read, "I'm here for u ma."

Chalk this one up as a win for Drake ... and a teachable moment for anyone else looking to go after him.