Cubspam

Verb.
Acronym for "Communication Unintended. Baby Stole Phone. Accidental Message"

When a child steals their parent's phone, or when a baby flails around in proximity to a parent's phone and sends incoherent and/or unintended correspondence.

When a person is blaming a butt-dial on their kids.

Scenario 1
Person A receives a text from Person B saying, "skb gghhs"
Person A:"Did you mean to send that?"
Person B: "oops, cubspam."

Scenario 2
A child steals their parent's phone. When the parent gets the phone back they see their child sent a bunch of random messages. The parent sends the recipient a message before the recipient sees the messages.

Parent: "cubspam"

Scenario 3. A person butt dials their ex.
Person: "sorry, cubspam"

Example:
"I have received several cubspammed messages from my friend's kid."

"My child keeps cubspamming my coworkers"