Pass the pipe!

Anne Hathaway’s boyfriend, Adam Shulman, was snapped taking a hit from a pipe handed to him by a pal in West Hollywood, California  over this weekend -- and Breaking Celebrity News has the smokin’ shot.

The “Doobie Brothers” sat in the car for a few minutes last Friday,  then headed off for lunch -- translation, they had the munchies.

We’re not saying  Shulman was smoking weed -- and heck, even if he were, medical marijuana stores are more common than Starbucks in WeHo.