Miley Cyrus celebrated her 18th birthday by experimenting with a bong and catching a case of the giggles.
The video was shot during a party at Miley's L.A. area home 5 days after her 18th birthday.
According to a source connected with Miley ... the smoke filling the bong is a natural herb called salvia which has psychedelic qualities. Possession of salvia is legal in California.
As for the video ... the source tells us it was shot by one of Miley's friends -- and theory is that someone stole or copied the video from that friend's camera.
LMAO at her rapping the Nicki Minaj part on Bottoms Up. If I were one of the people with her that time, I would have been so annoyed. She wouldn't shut the hell up.
If it wasn't Miley Cyrus... no one would give a ****. Every teenager has been there.
Well, I know a lot of People who never did this - including me :O
But I also think it's okay, that Miley did this. She just shouldn't do it anymore.
She's an idol for lots of young girls :/
I still love you 
