look out for number one

idiom

Definition of look out for number one

: to think primarily about oneself and do what helps one most We don't want a senator who's (only/always) looking out for number one.

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“Look out for number one.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/look%20out%20for%20number%20one. Accessed 10 Aug. 2020.

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