Jamie Foxx on Oscars Black People DID Win ... Leo DiCaprio's One of Us!

2/29/2016 3:42 PM PST BY TMZ STAFF

Leo DiCaprio is the next best thing to a black person winning an Oscar ... according to his now fellow Oscar winner, Jamie Foxx.

Jamie was flying out of LAX when he gave Chris Rock props on hosting -- but more importantly ... he officially declared Best Actor winner Leonardo an "honorary" brother! What exactly makes him black? You've gotta see Jamie's explanation.

It's high, and hysterical, praise from Leo's pal and former co-star. They've come a long way since "Django Unchained."