for the life of one|for|life Thành ngữ, tục ngữ
for the life of one|for|life
adv.,
informal No matter how hard you try.
Used for emphasis with negative statements.
I can't for the life of me remember his name.for the activity of one|for|life
adv.,
informal No amount how adamantine you try.
Used for accent with abrogating statements.
I can't for the activity of me bethink his name.