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A bone in the penis (penis bone, boner) usually found in most mammals, like dogs, cats, and walruses. Humans do not have a baculum(erections are caused by blood flow); but girls have the the analogous equivalent- a Clitorus.

In other words, it's the actual missing boner taken from Adam's penis to make Eve(Hebrew doesn't have a word for penis, so they used rib), and the area where God closed the flesh up is the perineal raphe.

Slang- An erection so hard, long, and everlasting like priapism(but not as long or fatal), that it's mistaken for an actual bone grown in the penis.
Ah crap, I couldn't stop thinking about that all-night threesome that I had last night, and my penis grew a baculum.
baculum by Ryuseiken September 20, 2006
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1. A bone, taken from raccoons before roasting, that is used by country folk as a tooth pick.

2. A bone present in most placental mammals, though not in humans, that is used to achieve or maintain an erection.
That hick sat there picking his teeth with a baculum.
baculum by vanishingly February 28, 2021
The name for the bone found in most mammalian penises. Ironically, humans do not possess a baculum yet we refer to an erect penis as a boner.
Jesse's erection was so prolonged that he might as well call it a baculum.
The sheath of skin covering the clitorus
I tore her beculum. Her beculum was torn.
Beculum by Torn-clit January 16, 2017
A green 40 volt electric leaf blower that makes an annoying high pitched whining noise that makes you want to stab yourself in the ear with an ice pick….AND then in the other ear.
I was awoken from a deep sleep by the shrill of the bacuum at 6:52am.

Why is my self absorbed neighbor bacuuming water off his sacred facking driveway at 6:52am.

I have a lot a lot to say. What the feck possesses you to bacuum pollen off your property at 6:52am?!

You spray tick killer on your neighbor’s kid again, I’ll shove that bacuum so far up your ass that it will blow last night’s meal all over your precious driveway.

The way you touch your bacuum reminds me of how Bill Cosby touched all those lolitas…Douchebag alert at 6:52am
Bacuum by RidgeJob August 21, 2021

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