Weed, pot, chronic, kill, KB, marijuana, dope...whatever you want to call it. When you say this instead of one of those words, it's more subtle and adds some much needed variety to your pathetic stoner life.
Everyone meet at my house at exactly 4:20 PM on the 20th day of April. Drinks are on the house and so is the herbal refreshment. (sounds high class and refined, doesn't it?)
As above. Said when the weed you smoked 2-3 hours ago has started to wear off and is making you 'dreg' out.
"I aint really feeling that chronic we smoked much anymore, let's go back to my hut for a 'herbal refrehment'."