EDDIE GRIFFIN'S BIG CHECK BOUNCES BACK!

Eddie Griffin is in the middle of a seriously nasty lawsuit -- one littered with allegations of deception, fraud and worst of all ... bouncing one of those comically oversized donation checks.

It's all over a $150,000 gift Griffin presented to the "Jamaica 360" program -- which sends 100 African American college grads on a career building vacation to Jamaica. Sure the intentions were good -- but according to a lawsuit filed by a man who went on the trip, the check bounced.

The man, Samir Sayegh, claims he was then duped into lending Griffin his credit card to cover a hotel bill while they were in Jamaica -- but according to the suit, Griffin took the card and secretly made a $150,000 charge to the main developer of J-360. Two weeks later, Samir got a bill from American Express with the six-figure charge.

So now ... AmEx is suing Samir for the $150,000 charge ... and Samir is suing Eddie and all the event developers to make them foot the bill. Good times.

A rep for Griffin could not be reached for comment.