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. Don't start this renovation project unless you're all in—or willing to live without a shower for a while. I can't believe my junk-food-loving little sister is suddenly all in on yoga and wellness.
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. Jocelyn's very conservative at our weekly poker game. I don't think I've ever seen her go all in. We both went all in, but, luckily, I had the better hand, so I won the pot.
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! Can we go back to our hotel room for a bit? After spending all day walking around the city, I'm all in. Let's just go home, the kids are clearly all in now.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.