spanking
[adverb]
Synonyms: very, awfully, damned, dreadfully, extremely, mightily, rattling, snapping, whacking, whopping

[TahlilGaran] English Synonym Dictionary ▲

I. spank‧ing¹ /ˈspæŋkɪŋ/ noun [uncountable and countable]
[Date: 1800-1900; Origin: spank]
the act of hitting a child on their bottom with your open hand, as a punishment:
If you don’t stop that noise, you’ll get a spanking!

[TahlilGaran] Dictionary of Contemporary English ▲

II. spanking² adverb informal
[Date: 1600-1700; Origin: Perhaps from a Scandinavian language]

1. spanking new very new and impressive:
a spanking new shopping centre

2. spanking clean very clean

[TahlilGaran] Dictionary of Contemporary English ▲

III. spanking³ adjective British English
at a spanking pace/rate old-fashioned very fast:
They started walking at a spanking rate.

[TahlilGaran] Dictionary of Contemporary English ▲