The non-premeditated and irreversible state of being a family within a band. Especially in marching band. Bamilies often times form much stronger internal bonds and abnormal (in some cases bizarre) attachments than the traditional marching band; as a result they are much more desirable than the traditional marching band.
Crowd: Woah, who's that big band?
Band parent: What band? Oh, you mean that super awesome bunch from Kingston?
Crowd: They're awesome!
Band parent: That's no band; that's a bamily!
by MightyMightyTigers November 5, 2010
Get the Bamily mug.
Being incredibly or impeccably bored by your family or at a family event.
I got so bamily last night at the New Year's Eve party.
by PrettierThanYourGF January 2, 2016
Get the Bamily mug.
Check out that Bamily

What’s going on in town today, loads of bamilies everywhere!
by Phillips Forehead August 10, 2021
Get the Bamily mug.