It happened in my Business Practices class. The instructor was talking about how we should be familiar with the menus of spas we might be interviewing at so that in the interview we could say something like, “Yeah, I’m really interested in your asbestos mango wrap.”
Asbestos Mango?
I couldn’t not do it.
“Band Name!!!”
The instructor got a kick out of it. The rest of the class shifted uncomfortably in their seats and tried to move away from me.
Anyone else ever done this?
Yeah. My mom was saying something about Jews in Waynesburg, and my brother and I both thought “Jews In Waynesburg” would make a great band name.
Ask any of my friends, every five minutes I interupt someone and shout out “Awsome band name!” or “That is sooo going to be my first albums name!”. I have a list on my closet that has about 400 of each lmao I have no life
What what what? :eek: 
Me and another friend were discussing the Hammurabi’s rules on barbers.
Sharon: “Huh. Babylonian barbers.”
Gadfly: “BAND NAME!”
While discussing a photo of Shane McGowan with a co-worker, I said something like “he has rather tragic teeth”.
Almost simutaneously, we looked at each other and said “Tragic Teeth: band name”.
I do this with Mr. TeaElle all the time. The most recent was when my nephew mentioned that his college offered limited food service in the cafeteria over the Thanksgiving break. He said “We get three food hours.” When the telephone call was over, I told Mr. TeaElle that Three Food Hours is now the new name of my non-existent band.
Mr. TeaElle hates me sometimes, I should note. 
Yes, although I can’t remember when and what it was.
I’ve also very nearly called out “Cite please!” IRL, as well as having had an almost overwhelming urge to loudly identify a broad range of logical fallacies (in sermons at my church, no less).
When my history teacer said, “Pugnacious Jingoism,” how could I resist?
At the end of a trailer for Bulletproof Monk. In a theater.
As I ate 4 sausages my anorexic patient said “I see you’re a 4 man sausage - I mean a 4 sausage man” we looked at each other and said - ‘4 MAN SAUSAGE!- BAND NAME!’
Yes, and my friends stared at me like I was from Mars. Even more than usual.
One of my cow-orkers used to do secretarial work for a local auto body shop–Jose’s Collision. Naturally, I had to make the “band name” comment when I heard that.
My friend Beth and I do this fairly often, actually. I think the best one we’ve come up with was “Illegible Hedge Priests” (a bit of a long story).
As we’re both early modernists we’ve found some pretty good ones in various class readings…
I’ve done it so much that my dad now does it too. I also do a similar thing where it’s not just a band name, I say something will be the name of my next album.
My dad went in the kitchen to get something from the freezer, and I heard him yelp so I said “what happened?” and he exclaimed “flying muffins!” So I said “that’s the name of my box set!”
I’ve been doing it for years. Recent opportunities: Good Quality Frogs, Martin Luther Kink.
Although nowadays I’m more likely to shout out “that’s my stage name!” E.g.: Helena Handbasket; Frieda Slaves; Elephant Gerald; Rubber DeNiro.
Yes, it happens a lot in my gaming group. Except we don’t shout it out, but do more of a Barryesque suffixation of “which, of course, would make an excellent name for a rock band,” to whatever absurdity presented itself…
DM - “Well, it’s been three days since the wicked virgins tied you down and shaved your beard, so you’re no longer a band of shaven dwarves. You’re now the prickly dwarves.”
Player - “Which, of course, would make an excellent name for a rock band.”
What, your band of dwarves didn’t get a saving throw vs. shaving?
BAND NAME!
So often that my sister has wondered why I don’t just decide to name my non-existent band ‘Band Name!’
I can cleary remember recently doing it in response to the phrases ‘The Genuine Article’, ‘Left-Handed Pants’ & ‘Rodriguez’ (with a rolled ‘R’)