Wiktionary
look out for number one
vb. (alternative form of look out for number one English)
look out for number one
alt. (context idiomatic English) To act in one's own interests; to act in a manner advantageous primarily to oneself. vb. (context idiomatic English) To act in one's own interests; to act in a manner advantageous primarily to oneself.
Usage examples of "look out for number one".
Ziggie would turn him in for the reward, for two minims Ziggie would sell his own motherZiggie thought that anyone who didn't look out for number one first, last, and always was a sucker.
And if he ever taught me anything, it was to look out for number one.
Ziggie would turn him in for the reward, for two minims Ziggie would sell his own mother -- Ziggie thought that anyone who didn't look out for number one first, last, and always was a sucker.