What it means
A call to pull everyone in close so you can talk as a group, usually fast and a bit bossy. Works for sports teams, mates in a noisy place, or colleagues crowding round a laptop. It’s got that listen up vibe, like the next bit matters and it’s meant for this little circle, not the whole room.
Usage examples
"Alright everyone, huddle up for a minute. Game plan is simple: keep it tight at the back, then hit them quick on the break."
"Right, everyone huddle up, I'll run through the plan once."
"The team huddled up at the edge of the pitch before the penalty."
"Oi, huddle up a sec, the bouncer's only letting half of us in so we need a new plan."
"Team, huddle up by the bench. We're changing the order and nobody goes wandering off."
Where it comes from
It comes straight from American football and other team sports, where players literally huddle up in a tight circle to talk tactics fast and keep it within the group. From there it spread into everyday English for any quick pull-in-close moment when something needs saying to your little crew.
