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3. all in

all in

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all in

1. Fully committed to a task or endeavor; giving or prepared to give all of one's energy or resources toward something. Just so you know, I'm all in if you're serious about taking that cross-country trip next week.

2. Betting all of one's money in a card game, such as poker. Once I got my best hand of the night, I went all in.

3. Completely exhausted, fatigued, or worn out. I was all in after only the first mile of the race; I could barely even walk for the rest of it!

See also: all

all in

completely tired. I'm all in. I need some rest. After their 10—mile hike the campers were all in and very hungry.

See also: all

all in

1. Tired; exhausted.

2. Games Staking all of one's chips, as in poker.

3. Putting all of one's available resources into an effort: The governor mounted a halfhearted campaign for the presidency but didn't go all in.

See also: all