Mildly insulting phrase denotes silly behaviour, actions or thoughts usually attributed to a child or immature person.
"Don't get angry at your little bro., he did not mean to pull your hair, he is a two-year old bird brain"
by Muyuna December 11, 2004
by aymeryia March 5, 2009
Somebody who is saying very stupid dumb things and is always getting you confused because they don’t make sense
by simpforfinnwolfhard November 15, 2020
really dumb and ugly males who scratch their testicles al day long and like to interact with other bird brains. Hobbies include xbox,shooting,talkin about xbox and talkin about shooting...NOW NOW NOW NOW
by non bird brain January 27, 2011
Somebody who doesn't understand math and will never understand. He will utter stuff like: The proof is brilliant. It uses mainstream mythmatics to demonstrate the bullshit being taught by the BIG STUPID. It accepts infinity as being valid.
by Harry Stoteles December 21, 2016
by SlipNdip_69 March 30, 2020
by simpforfinnwolfhard November 15, 2020