noun
fib; exaggeration; snow job
Slang for a lie or exaggeration, often used in casual conversation among young people. Can imply a boastful or deceptive story.
彼の話はどうせフカシだよ。
His story is just a fib anyway.
あの自慢話、絶対フカシでしょ。
That boastful story is definitely an exaggeration.