1. To be unceremoniously broken up with, unfriended, or otherwise casual become disassociated with; shown through actions. Can implies the person that put the other down for a better alternative or for bored.
2. To be casually dismissed from a relationship, verbally
3. To be ghosted
1. Ex. Mom talking to Dad: Now that Sally's started high school and made new friends she hangs with them a lot more. I guess she's grown up and put her mom down and doesn't want to hang out with me anymore.
Ex. John can never seem to make it to our outings now, I guess he's put us down