adverb
frankly; honestly; to tell the truth
Colloquial adverb used to preface a blunt or honest statement, often softening what follows.
ぶっちゃけ、その計画は無理だと思う。
To be honest, I think that plan is impossible.
noun
speaking one's mind; holding nothing back
Noun use referring to the act of speaking frankly; often used in phrases like ぶっちゃけ話.
彼のぶっちゃけ話にはいつも驚かされる。
I'm always surprised by his frank talk.
adverb
Colloquial intensifier, similar to すごく or めっちゃ; used before adjectives or verbs.
このラーメン、ぶっちゃけうまい!
This ramen is seriously good!