What does "goose bump" mean?

Raised skin, usually caused by the involuntary erection of hairs on the neck or arms caused by cold, excitement, or fear.

Goose bump

Common synonyms include: goose pimple, goose skin, goosebump, gooseflesh, horripilation, pilomotor reflex.

noun

noun ·Rare ·Advanced level

Noun

1
Raised skin, usually caused by the involuntary erection of hairs on the neck or arms caused by cold, excitement, or fear. in-plural
2
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation wordnet

From the resemblance of goose bumps to the bumps on the skin of a plucked goose.