A-

A weak or vulnerable factor.
 * 1) 1 Achilles heel

Ace up your sleeve If you have an ace up your sleeve, you have something that will give you an advantage that other people don't know about (something hidden advantage When you do something that make a bad situation worse
 * 1) 2 Add fuel to the fire

Afraid of your own shadow To be extremely nervous and easily frightened 

To discuss private or embrassing personal information in public
 * 1) 3 Air your dirty laundry in public

Albatross around your neck A problem resulting from something you did that stops you from being successful

to be very eager to hear what someone is going to say
 * 1) 4 All ears

All that glitters is not gold Just because something looks attractive does not mean it is genuine or valuable.

Someone who is very awkward and clumsy
 * 1) 5 All thumbs

Ants in your pants If someone has ants in their pants, they are agitated or excited about something and can't keep still

Something or someone that is very special to you is the "apple of you eye"
 * 1) 6 Apple of your eye

As the crow flies Measure in a straight line

If someone is asleep at the switch, they are not doing their work or taking their responsibilities very carefully
 * 1) 7 Asleep at the switch

At the drop of a hat If you would do something at the drop of a hat, you'd do it immediately

your at the limit of your patience Ax to grind to have something to complain about
 * 1) 8 At the end of your rope