CAUGHT BETWEEN TWO STOOLS
UNDER THE WEATHER
IN HOT WATER
BUTTERFLIES IN ONE'S STOMACH
LOSE ONE'S MARBLES
ALL EARS
COST AN ARM AND A LEG
LET THE CAT OUT OF THE BAG
A PIECE OF CAKE
PULL ONE'S LEG
COLD FEET
HIT THE SACK
KNOCK ONE'S SOCKS OFF
AT THE DROP OF A HAT
HOLD YOUR HORSES
TO GO TO BED
TO DELIGHT, THRILL OR AMAZE
SOMEHING VERY EASY TO DO
TO BE IN DIFFICULTIES, IN SERIOUS PROBLEMS
TO LOSE COURAGE TO DO SOMETHING YOU HAD PLANNED
TO ACT IN A CRAZY OR STRANGE WAY
TO BE EAGER TO LISTEN CAREFULLY
TO CONSIDER THINGS CAREFULLY
INMEDIATELY, WITHOUT ANY DELAY
TO PLAY A JOKE IN A FRIENDLY WAY
TO BE ILL
TO BE VERY EXPENSIVE
TO REVEAL A SECRET UNINTENTIONALLY
TO BE VERY NERVOUS OR ANXIOUS
TO BE UNABLE TO CHOOSE BETWEEN TWO ALTERNATIVES