A large group of Bams is called an 'intimidation'.

The likely origin of this term is believed to come from the anti-social behaviour of bams and the general anxiety and fear a large group of bams can provoke when gathering in numbers.
Hold up, big man! Dinnae cross th' street! There's a massive intimidation of bams 'roon that bus stop!
by Tiberius Baltimore January 5, 2021
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When you think of something that in theory should work, but that is not practical.
Just heat up the shaft, take a punch, hit it with a hammer and bam it'll come out of the hole. (It is not practical because everything is covered in rust and has been stuck for 20 years.) Bam Theory. The difference between an engineer and a fabricator.
by bam theorist. February 23, 2012
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A woman who pops out babies for income.
Damn, Roseanne is a bam artist. How many kids does she have?
by Happy Gilmore123 August 31, 2010
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1. Earliest use in the neutral sense of speedy in "Dear Mr. Banker", by Nicholas P. Mitchell, published in The Greenville News of January 14th 1950:

"By the way, in spite of the fact that various Greenville bankers have explained to me why it isn’t a good idea, I still wish every bank had at least one teller’s cage reserved for people who want to cash a check or to make an individual deposit. Such transactions require about half a minute, but it is not unusual to wait in line fifteen minutes or more while those who are banking on behalf of business get their requirements met. ... But if we small fry had a “wham, bam, thank you ma’am,” line of our own, we’d all save a lot of time."

The phrase merely referred to suddenness before it was used as a slang for quick sexual intercourses.

2. The earliest occurrence of wham, bam, thank you ma’am with reference to sex is from the review of Ball Four (World Publishing Co. – New York, 1970), by the American baseball player James Alan Bouton, hence 20 years after its first use as an adjective. Bouton's review was published by John Justin Smith in the Star-Gazette (Elmira, New York) of June 10th 1970:

"Bouton says of ball players that they are not, by and large, “the best dates. They prefer wham, bam, thank you, ma’am affairs.”

3. It's used in the military to denote a sudden, forceful effect. Feel free to also use it to denote any sudden, quick action or effect, not just sexual ones. The intended meaning is highly contextual.
"One of the most impressive things in the book is the lightning suddenness with which capital ships destroy one another. Wham! Bam! Thank you ma’am—and there goes a few hundred millions of somebody’s money to Davy Jones’ locker."
by Claude Eckel July 30, 2021
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This hot down-ass chic let me bam zing all over her pants
by TheDiscoBiscuits4Life September 29, 2021
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If you're having trouble with words around friends, just say this!
Boom Bam Chicken and Ham I just got my first goat jam.
by Mr.BoxghostMr. July 2, 2017
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