What does Let's keep the 40's poppin mean from the song everywhere i go by Hollywood undead?

Well, honey, "Let's keep the 40's poppin'" from the song "Everywhere I Go" by Hollywood Undead basically means they want to keep the party going by drinking and having a good time with their friends. It's all about enjoying life and living in the moment, so grab a drink and join the fun! Just don't blame me if you wake up with a killer hangover.