Bengals Rookie Tyler Boyd Has Big Plans for $4 Million Contract!

He JUST got rich -- but Bengals rookie wide receiver Tyler Boyd says he's already got big plans for the millions of dollars he's about to bring in ... starting with a HUGE expensive dinner for his teammates.

Boyd reportedly signed a $4 million contract after being selected in the 2nd round of the NFL Draft -- so, we had to ask ... what's the first big purchase gonna be?

Check out his answer -- his mother is gonna be STOKED!

But then we asked about the most expensive ritual in pro sports -- the rookie hazing dinner.

Shockingly, Boyd says he's already got a plan in place -- and is EXCITED to treat his teammates to one of the finest restaurants in town.

Careful what you wish for ... just ask Jevon Kearse (see video below).