to be in on sth	to have knowledge about something or to be involved in it
to donate to sth	to give money, food, clothes, etc. in order to help a person or organization
to file a complaint	to complain officially to someone
to keep a lid on sth	to keep something secret
to lose sight of sth	to forget about an important idea or fact because you are thinking too much about other things
to have a stroke of genius	to have a sudden brilliant idea
up to your ears	deeply involved in something
to cut sth to the bone	to reduce costs / prices as much as possible
to let sb go	to officially make someone leave a job
to form an alliance	to create a relationship between people, groups, countries. in which they agree to work together
to make yourself at home	to feel relaxed and comfortable
to put sb at a disadvantage	to make it harder for someone to succeed
to flip a coin	podrzucać monetę
at will	when you want
to garner respect	to receive respect
in the wild	not in captivity(niewola) but in the natural habitat
to set the bar high	to establish a high standard
to get the axe	to be fired from your job OR to be stopped from happening
to overlap	to lie over the edge of something OR to happen at the same time as something else
to step away from	to leave something
to butcher sth	(informal) to do something very badly : to make a mess of something