"Grumphie" is a delightfully expressive and onomatopoeic Scots word for a pig, its sound capturing the grunting, snuffling quality of the animal. Burns uses it in "Halloween" and other poems of rural life, and it contributes to the democratic, earthy texture of his verse, where farm animals are named with the same attention as people. The word's humorous quality — that slightly dismissive suffix — is nevertheless affectionate, and in Scots poetry the pig is a legitimate presence in the agricultural world the tradition celebrates and observes without sentimentality.

Grumphie is a delightful example of Scots affectionate anthropomorphisation — the pig given a personality through its name alone, the "grumph" (grunt) built into the word's very sound. Burns uses "grumphie" in "The Auld Farmer's New-Year Morning Salutation to His Auld Mare, Maggie" and other farm poems where animals are addressed as participants in communal life rather than mere livestock. In the tradition of Burns's animal poems, the grumphie is not a symbol or an abstraction but a specific, recognisable creature. For students studying Burns's pastoral and animal verse, this kind of affectionately named beast reveals the poet's democratic respect for non-human life.