Definition of balls-achingly in English:
balls-achingly
adverb
(also ball-achingly)
vulgar slang British as submodifier To an annoying or tedious degree (used for emphasis)
- ‘don't be so balls-achingly adolescent’
Pronunciation
balls-achingly
/ˈbôlzˌākiNGlē/ /ˈbɔlzˌeɪkɪŋli/