Definitions by DrugFiend

Beijing Mouthwash 

To follow a "gumming" of mephodrone by a healthy swig of juice, whilst swirling abruptly and subsequently swallowing, resulting in an enhanced state of euphoria or "highness"

"Gumming hurts man!"
"d00d what you need is a Beijing Mouthwash!"

Beijing Mouthwash by DrugFiend March 21, 2010