Though countless people would jump at the opportunity to smoke with Snoop Dogg ... about the time they both attended a party at Paul McCartney's house, where everyone from Bruce Springsteen ...

the 32-year-old actor reflected on his get-together with De Niro and Snoop Dogg ... starstruck he was when he noticed Meryl Streep at Paul McCartney’s star-studded house party.

Austin Butler just shared the details of his wild night at Paul McCartney’s house party ... Butler was invited to “have tacos with Snoop Dogg and Robert De Niro.” “I dropped everything ...