fess up

By the time kids are asking directly, “Is Santa really real, or are you actually the one bringing the present?” it’s probably time to fess up, Mills said.

Those who refused were sent to an administrator’s office to call their parents and fess up to breaking the rule.

Did she fess up to her IG handle?

This wasn’t the time to fess up that something horribly wrong was happening.

"But as ever with Banksy - you never quite know, until he fesses up by posting it on his website."