• up to one's ears in

• pick holes in it

• get one's knickers in a twist

• set the wheels in motion

• change horses in midstream

• butterflies in the stomach

• play a losing game

• many arrows in his quiver

• put all the eggs in one basket

• like two peas in a pod

• pick holes in

• the fat is in the fire

• the proof of the pudding is in the eating

• beauty is in the eye of the beholder

• put words into his mouth

• raising Cain

• put all one's eggs in one basket

• quids in

• have several irons in the fire

• rub his nose in it

• poke one's nose into

• when my ship comes in

• build castles in the air

• hair-raising