Definition of ASMR in English:

ASMR

noun

  • A feeling of well-being combined with a tingling sensation in the scalp and down the back of the neck, as experienced by some people in response to a specific gentle stimulus, often a particular sound.

    ‘ASMR is triggered by things like whispering voices, paper tearing, and scalp massage’
    • ‘I've often experienced ASMR when having a haircut’

Origin

Early 21st century abbreviation of autonomous sensory meridian response.