millennial spliff 

Millennial Spliff (n.) - the metaphoric implement described to be in use when one simultaneously smokes an e-cigarette along with marijuana.

"Bro, you're puffing really hard on that e-cig and hitting that bowl."
"I know it's a Millennial Spliff!"

millennial spliff by gucciforfree January 31, 2014

Millennial Spliff 

When somebody simultaneously hits an e-cigarette and a dab pen

Damn bro is that a millennial spliff?

Millennial Spliff by bdan-313 September 24, 2019

Millennial Spliff 

Hitting a juul and a dab pen at the same time

Bro that millennial spliff got me faded

Millennial Spliff by TheShlow October 1, 2019