luck out

luck out  {v. phr.},  {slang},  {informal}

1. Suddenly to get lucky when in fact the odds are against one's succeeding.

I was sure I was going to miss the train as I was three minutes late, but I lucked out, the train was five minutes late.

2. To be extraordinarily fortunate.

Catwallender really lucked out at Las Vegas last month; he came home with $10,000 in cash.

3. (By sarcastic opposition) to be extremely unfortunate; to be killed.