The pair is basically best friends after filming Passengers together, but in the latest round of Playground Insults on BBC 1 Radio, they put the niceness aside and threw their best verbal jabs at each other (which ended up not being all that great).
They can hardly keep a straight face as they attempt to criticize each other for four straight minutes, often breaking into an uncontrollable laughter and admitting their struggle to come up with anything insulting.
J.Law started things off, telling her co-star, "You are so falsely strong that if I was given a choice of you or your wife to protect me, I would choose Anna [Faris]."
Pratt couldn't keep from smiling, "I can't think of anything bad about you. I like you so much. It's a shame."
However, Lawrence didn't let that get to her head. "You are so stupid that your 3-year-old son [Jack] has probably taught you everything you know," she laughed.
But Pratt trumps her with this one-liner: "Why did they call it Joy?" LOL!
The 26-year-old actress began cracking up, barely keeping it together as she clapped back, "You are so bad at acting that the cast of Saved By the Bell feel sorry for you."
J.Law then dished her own zinger, asking, "Where do you keep your Oscar?"
But we must say, Pratt dropped the mic with his final insult: "During our sex scene [in Passengers], I felt your d--k rubbing into me."
Yes, we busted up laughing, too!
Watch their full, four-minute jab fest in the video above.