You've heard of the Red Wedding, but Stephen Jackson had a green one ... 'cause ex-NBAer Matt Barnes says everyone was tokin' up before and after his big ceremony!!
43-year-old Stak married his new wife, Tamara, at a star-studded event this weekend ... with guests like rapper 2 Chainz, fellow former hooper Al Harrington.
But the most VIP guest of the day?? WEED!!
"We smoked before and after," Barnes tells us ... which means Stak had to be feeling reeeaaaalllly good as he exchanged vows.