look up any word, like dirty sanchez:
 
1.
An acquaintance that you hang out with for the soul purpose of smoking their marijuana, often at no financial cost to you. A friend with herbal benefits may even be a person you would despise were it not for their herbal benefits.
Steve: "Yo, wanna come smoke with me and Scooter?"
Jim: "Nah man, that guy's a tool! Why do you even hang out with him?"
Steve: "I don't know, I guess he's my friend with herbal benefits"
by Phill The E.P.I.C. July 29, 2010