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1. To come together in a small and/or specific group, often to discuss something privately. Likened to a huddle in American football, in which the offensive team gathers together before a play to discuss their plan. Go ahead and huddle up with your husband and decide if you want to submit a counter-offer. Come on, fellas, huddle up with the coaches!
2. To cause people to come together in a small and/or specific group. In this usage, a noun or pronoun can be used between "huddle" and "up." Can you huddle up everyone who's going on the next tour?
3. To bring the limbs in close to the body; to curl up. We huddled up together to try to keep warm.
1. To move close together to form a tightly packed group: The football team huddled up to discuss the next play.
2. To cause a group to come together in a tightly packed crowd: I huddled the children up in a group in the museum lobby. The police huddled up the protesters and led them into the van.
3. To assume a position with the limbs drawn up close to the body: The lost hiker huddled up under a shelter made of branches and leaves.