Be in cahoots phrase
To be secretly working together
I know my husband are in cahoots with the kids, but I don't know what they are doing.
Loggers are in cahoots with the local authorities to illegally exploit the forest.
It turned out that the contractor was in cahoots with the mayor to win the contract.
Used to tell someone to keep secret what you're about to say
A thing is known about by only a few people and kept hidden from others because it makes somebody feel ashamed.
Kept in secret
To make a secret plan
people often do irrational or foolish things when they are in love.
I and my boyfriend have decided to get married in the summer. I don't think that's wise, since we won't have enough money saved by then to set up house. But then, one cannot love and be wise.