To break a confidence or a trust. When someone confides something Very personal & private to you; trusting you to Keep it confidential only to discover that they were betrayed & the 'private' conversation you had with them has now been told to several other people.
Confidence Betrayal Trust Private Persoanl...."I feel SO hurt; I trusted Amber with something very Personal & now I'm hearing several people talking about it. I Can't believe she Spilled On me like that!"......"Tinabroke a confidence; she Spilled On me; she just Can't be trusted to keep her mouth shut"
To pee oneself or on something, derived from Lemonade which has a yellow color similar to that of urine, to spill lemonade means that you have peed on something or yourself
Jim: Can you get some towels? the dog spilled lemonade on the rug
May: Spilled lemonade?
Jim: He peed on the rug dear