to do what someone else was going to do before they do it, especially if this takes success or praise away from them
steal sb's thunder
to accept the blame for something another person did
take a/the fall for sb
US informal
o admit the truth about a secret you have been trying to keep
come clean
to show what someone's real character is, especially when it is unpleasant
show sb in their true colours
to become mentally ill, or to start behaving in a silly or strange way:
lose your mind
someone who always does the same thing in the same way
creature of habit
to make a serious effort to defeat someone, usually by criticizing or harming them in a cruel way
go for the jugular
something that you do because it will help you to achieve something else
a means to an end
he became pale
colour drained from his face
the stage at which someone is about to become very angry
boiling point
to say that you did something or that it is your fault
take the blame
to show no sign of surprise or worry when something unexpected happens
US (UK not bat an eyelid)
not bat an eye/eyelash
US (UK not bat an eyelid)