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undercarriage

The area between your legs. Your crotch.
Damn Betty, go shower, you've got one janky undercarriage.
by T dawg March 23, 2005
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undercarriage

Very simple. This is your pet's fucking stomach.
Kitty loves it when you scratch her undercarriage.
by Shagmelon April 16, 2011
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Undercarriage

If you are a little pudgy, your gut may sag down when doing push ups or copulating. This can be particularly unattractive as during vigorous sex, it may swing from side to side, back and forth, much like a metronome. In extreme cases, the folds of fat, or female breasts, may slap together making a sound not dissimilar to the sound of a sealion performing for food at shows at many zoos. This noise is known as flap or tat slapping.
"Dude, I was fucking Cindy in the ass"
"Awesome dude! How was it?"
"Great, but her undercarriage was swinging around, almost knocked me off balance"
"Eww. Sick dude"
by jizzmong hunter August 22, 2009
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Undercarriage

The entire lower region of the human body where the sun don’t shine — including the pubic area, genitals, and that sacred stretch of land known as the perineum. Essentially, everything below the belt that requires occasional grooming, strategic ventilation, and a strong sense of self-respect.

A polite, semi-mechanical way of referring to your “bits” without actually naming them. Commonly used to avoid making Grandma choke on her tea when the conversation turns anatomical.
Common uses:
When talking about hygiene (“Don’t forget to wash your undercarriage!”)
After a long workout or hot day (“My undercarriage is crying for mercy.”)
In medical or grooming contexts where you’re trying to sound professional but failing miserably.

Synonyms:
Nether regions, private parts, downstairs department, forbidden zone, no-fly zone, the lower forty, below deck.

Example 1:
“Bro, that bike seat destroyed my undercarriage. I might never sit again.”

Example 2:
“Spa day! Time to give the ol’ undercarriage some much-needed maintenance.”
by EMD F59PHI October 24, 2025
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Undercarriage Polish

The act of licking/sucking the gooch.An act typically completed during a Blow Job.
Damn! That ho worked hard, she even gave me an Undercarriage Polish
by Mr.Chin May 18, 2011
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Undercarriage Marauder

A testament to ones cunnilingus skills. A shashbuckler of a females nether regions. A pirate of poonani...
Broads be calling us the Sailors of the South Mouth, a regular Brigadier General of the clit ...shit them hoes over there know me as Capt VanGyner the saltiest of all them Undercarriage Marauders.
by Frydae November 22, 2011
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Undercarriage Makeover

To wash, clean, tidy and if necessary, shave and trim, one’s genitals, taint or asshole. All three if circumstances warrant.
The prostitute dashed into the Wawa bathroom to do an undercarriage makeover after her last John filled her like a Boston cream donut.

The humidity was so swamp ass inducing that I had to freshen with an undercarriage makeover.

I gave myself and entire undercarriage makeover before my Grindr hook up arrived.

I looked like Chewbacca’s face down there so I cleaned up with an undercarriage makeover.
by Dick Onchin November 14, 2020
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