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[at sixes and sevens]  {adj. phr.}

Not in order; in confusion; in a mess.

He apologized because his wife was away and the house was at sixes and sevens.

Our teacher had just moved to a new classroom, and she was still at sixes and sevens.

*  […]

[at --- stage of the game]  {adv. phr.}

At (some) time during an activity; at (some) point.

At that stage of the game, our team was doing so poorly that we were ready to give up.

It's hard to know what will happen at this stage of the game.

*  […]

[at stake]  {adj. phr.}

Depending, like a bet, on the outcome of something uncertain; in a position to be lost or gained.

The team played hard because the championship of the state was at stake.

* /The farmers were more anxious for rain than the  […]

[at straws]

See: [GRASP AT STRAWS].

[at swords' points]  {adj. phr.}

Ready to start fighting; very much opposed to each other; hostile; quarreling.

The dog's barking kept the Browns at swords' points with their neighbors for months.

* /The mayor and the reporter were always at  […]

[at table]

See:

[AT THE TABLE];

[WAIT AT TABLE].

[at that]  {adv. phr.},  {informal}

1. As it is; at that point; without more talk or waiting.

Ted was not quite satisfied with his haircut but let it go at that.

2. In addition; also.

* /Bill's seat mate on the plane was a girl and a pretty one at  […]

[at the best]

See: [AT BEST].

[at the bit]

See: [CHAMP AT THE BIT].

[at the drop of a hat]  {adv. phr.},  {informal}

1. Without waiting; immediately; promptly.

If you need a babysitter quickly, call Mary, because she can come at the drop of a hat.

Compare: [ON THE SPUR OF THE MOMENT].

2. Whenever you have a chance;  […]