hold out on

hold (something) out on (someone or something)

to keep news or something of value from someone or a group. What's going on? Are you holding something out on me? Don't hold out on the city council. They have ways of finding out everything.
See also: hold, on, out

hold out on somebody

to refuse to give help or information to someone I discovered that she had been holding out on me all these years, not telling me the secret ingredient in her pies.
See also: hold, on, out

hold out on (someone)

To withhold something from: Don't hold out on me; start telling the truth.
See also: hold, on, out