Snoop Dogg -- Marshawn Lynch Doesn't Smoke Weed

He might have a strain of weed named after him ... and he's always craving Skittles ... but Marshawn Lynch is no stoner ... so says Snoop Dogg.

In fact, when our guy brought up the Beastmode strain that started hitting pot shops around Super Bowl time, Snoop made it clear that Marshawn had NOTHING to do with it.

"My homeboy got a career to play," Snoop says ... "He's still in the NFL. He's got a commissioner to deal with."

There's more -- we also talked to Snoop about UCLA ... and if he's excited to go to the football games with Puff, since their sons will both be on the squad next season.