Class word 23:

1-nuke:
verb [T] INFORMAL
1 to attack a place using NUCLEAR WEAPONs
2 to cook food in a MICROWAVE OVEN:
• Will you nuke the pizza? It's not hot enough.
noun [C] INFORMAL
a NUCLEAR WEAPON

2- hot-potatonoun plural hot potatoes [C usually singular]
a subject or problem that no one wants to deal with, because it is difficult and any decision will make people angry:
• Euthanasia for terminally ill patients is a political hot potato.

3- pie in the sky
a good plan, promise, or idea that you do not think will happen:
• Building a baseball field downtown is just pie in the sky right now.4-

4-show your true color
to behave in a way that shows what your real character is, especially if you are dishonest or not nice

5- in full color
they use all the colors).