When you get hungry after smoking weed. Usually people will eat a lot of junk food.
Two kids are getting stoned:
"...and ice cream, and a whole pizza just for me, and some chips, and a soda, and some chocolate...maybe some chinese food, gummy worms, lasagna, rice, ramen, chicken and a hamburger...oh yeah, i almost forgot i wanted some fries with that..."
"Damn...that's some serious munchies you have!"