Someone of the age of reasoning (ie. older than 12) acting like a spoiled child. (ie. pouting, throwing a tantrum, etc.)
Patrick was just being a brat baby, he was angry he had to work while his wife got to stay home with the children
by Jennifer Severson July 5, 2008
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(Noun) bean·ie ba·by brat

/ˈbēnē/ /ˈbābē/ /brat/
1. A derogatory term for when you're younger sibling is being an absolute twat waffle.

2. When a younger sibling doesn't understand the hierarchy. (IE: Someone who is unable to comprehend thr birth rights of the much older and wiser sibling)

3.Gavyn with a Y instead of an I
"Wow Gavyn is being a beanie baby brat."
by Slashlite August 27, 2022
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