Wham! Bam! Thank you ma’am

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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Wham Bam Thank You Ma'am

if you want to prove a point or if you want to have a great comeback for a b*tch if you want to leave them speechless
if you want to be a boss ass b*tch then say wham bam thank u, next
b*tch friend: omg did u do this
you: NO I DID NOT SO WHAM BAM THANK YOU MA'AM GOODBYE
b*tch friend: ok damn
by d4hlia February 28, 2019
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Am-Bam

A slim thicc woman. That drinks titty juice with vodka. She will have 10 kids and will want to kill all of them. She is the type of human being to keep all holiday stuff out all year. Works five jobs and still doesn’t have a lot of money. She is married to a transgender guy that’s obese and eats his earwax.
Heyyyy is that a Am-Bam?
Look that girl is gonna be a Am-Bam.
Heyyy Am-Bam
by Big shrinky gpa dicks November 21, 2019
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hi bam bop dup po

u will never now hi bam bop dup po
by ruiyekoy8yde8rue8ryyy December 18, 2018
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bam and jam

When playing basketball, you attack the basket, draw contact, and proceed to dunk the ball anyway.
Rudy Gay drives...bam and jam! My god what a dunk with contact.
by Kadeem Richardson July 06, 2017
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sam the bam

sam the bam is so funny
by samthebamofficial June 26, 2021
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Bam up

This is Scottish slang. To "bam up" someone means to wind them up, and/or trying to make them believe something that isn't true.
Example 1
Person 1: My pal said you have to wear Speedos at the pool

Person 2: Naw you don't, you can wear swimming shorts, your pal on the bam up, he was bamming you up

Example 2
Person 1: What time is the plane leaving tomorrow?
Person 2: 6am mate
Person 1: Stop trying to bam me up (knowing it isn't that early)
Person 2: You're nae fun, it's at 12 noon
by Undulating_Unicorn April 06, 2024
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