The idiom "pull leg" is a playful way to tease or joke with someone, often by pretending to take their advice or suggestion seriously, but with no intention of following through.

The idiom "keep an eye on" means to be alert, observant, or watchful over something or someone. It can also mean to monitor or supervise a situation or person closely. This idiom is used when you want to keep track of something or someone that might cause problems or pose a threat.

The idiom "banana republic" refers to a country that is politically unstable, corrupt and has weak institutions, often characterized by its dependence on imported goods, particularly bananas.

The idiom "black out" means to lose consciousness or to become unconscious due to lack of oxygen, injury, illness, or other reasons. It can also refer to a power outage that causes the lights and other electrical devices to go off.

"Pull the wool over someone's eyes" is an idiom that means to deceive or trick someone into believing something that is not true. It can also refer to convincing someone of something by using persuasive language, rather than presenting facts.