| A | B |
| ants in your pants | overactive, extremely restless |
| apple of my eye | person or thing that's greatly loved or adored |
| all thumbs | awkward or clumsy, especially with the hands |
| all ears | eager to listen; curious |
| air your dirty laundry in public | to talk about private or embarrassing matters in public |
| ax to grind | something to gain for yourself for a selfish reason |
| asleep at the switch | not being alert |
| at the drop of a hat | right away; at any moment |
| at the end of your rope | at the limit of one's patience to do something |