"to pull someone's leg"
to make someone happy about something
to make someone uncomfortable or anxious
to fool/joke someone
"to take the plunge"
to make a choice (especially between two similar options
to fall down (from a very high place)
to commit to a decision (often one that makes you nervous
"as clear as mud"
something confusing
something brown
something obvious
"to skate on thin ice"
to be in a risky situation
to do something challenging
to not like something you have to do
"to speak of the devil"
to have an uncomfortable conversation
the person who you were talking about unexpectedly arrives
to talk about a person you don't like
"break a leg!"
good luck!
well done!
have fun!