the.com/munchies

means A sudden craving for snack food, especially the kind that hits after smoking cannabis.

from From 'munch,' meaning to chew noisily, which goes back to Middle English 'monchen' — probably imitative, just mimicking the sound of eager chewing. 'Munchies' as snack food is attested from the mid-20th century, but it's the pairing with marijuana slang in the 1970s that gave the word its specific, famous craving — cannabis is known to stimulate appetite, and the slang caught up to the science.