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Crude definition of the female mammory glands. Its origina is close to that of "Baps" which means the same thing.

Pronounced "th-waps"

Most often used when trying to exemplify how huge or great they are. So baps would be on one level but if desribed as "thwaps" it takes extra tongue dexterity to pronounce thus more effort thus ramming home the fact that these breasts were far out of this world.
The thwaps on that chick are huge.
thwaps by Track7 May 13, 2005
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Have you heard about Jeff? He has a new job and is making thwapa
Thwapa by ThwapaMaster July 9, 2021
Related Words

thrapston slap 

slapping an inbred female from or in thrapston with your penis on the forehead
man, i gave that bird a right thrapston slap yesterday
thrapston slap by rhyseyg August 16, 2010

thwap thwap thwap

The sound you make when you masturbate
thwap thwap thwap thwap thwap squish squish squish uh uh uh uh uhhh.............. ahhhhhhhh....... squirt squirt squirt
thwap thwap thwap by (****()) June 4, 2022
A WET FLATUATING SOUND
GREG LET OUT A THWAPPY FART TODAY
thwappy by thwappy May 3, 2016

thwapple 

A lewd and cruel act of revenge in which penis owner removes a snapple (usually diet) from a shelf or refrigerator of somebody who has wronged them, open it (hearing the snap) pour out approximately half of the beverage, and film themselves filling the container with their own urine. they will then thwap their penis against the container for a few minutes, and end the filming process by panning the camera to a hand written note with the target's full name and date written on it.

They then heat the container in the microwave until it is near boiling temperature, and replace the lid. As the liquid cools in the sealed container, the remaining gas and liquid will contract, causing suction which will snap the lid back down, to make it appear as though the container has not been tampered with. The container will be returned.

After the beverage has certainly been consumed, the video will be sent to the target from a burner phone, in a message saying something like "this was a thwapple, not a diet snapple."

(Note, diet snapple is traditionally used because it both masks the taste of urine better, and because people who drink them tend to be horrible.)
"So, Billy got arrested. He told me he gave his boss a thwapple. He said he pissed in her drink, sealed it, hit his junk on it, then sent her a video of it after she drank it. She recognized the shape of his penis, and called the cops. He is basically fucked now, but that shit was hilarious."
thwapple by AlexKay245 October 8, 2019
the sound that occours when Tony Danza gives you a giant cock slap on your forhead
THWAP! you just got owned by tony danza
thwap by american_jesus June 18, 2004
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A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
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Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
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"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

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Dutty by J Hall April 3, 2003
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