Present participle of 'fash'; worrying or bothering; or used as an adjective meaning bothersome or troublesome.
Standard -ing form of 'fash,' forming both gerunds and present participles in Scottish and Northern English dialects.
'That's pure fashing' (that's really bothersome) shows how Scots creates adjectives from verbs dynamically—it's not in the dictionary officially, but native speakers understand it perfectly through morphological rules.
Complete word intelligence in one call. Free tier — 50 lookups/day.