What does よっぽど mean?
よっぽど is a Japanese adverb meaning “very; greatly; much; considerably” in English. It can also be translated as “just about to” depending on context. It is written as よっぽど in hiragana, and yoppodo in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
あいつがガッツポーズするなんて、よっぽど嬉しかったんだろうな。
It must have been something really big for him to strike a triumphant pose like that.