一いっ生しょう分ぶん

noun, noun which may take the genitive case particle 'no'

lifetime supply; lifetime's worth

Used for an amount so large that it would last a lifetime, often with a nuance of exaggeration.

• 宝たからくじが当あたったら、一いっ生しょう分ぶんのお金かねが手てに入はいる。

  If I win the lottery, I'll get a lifetime's worth of money.

• この本ほんには一いっ生しょう分ぶんの知ち恵えが詰つまっている。

  This book contains a lifetime's worth of wisdom.