Noun
An abstract object that is neither a Schlong, a Schlaverage, or a Schlort. Anything that is not defined as a penis, while remaining distinctly not anything else.

Alternatively,

Verb
I.... I don't know. I know it's a verb, but the knowledge of what exactly it is unfit for the human mind. Cannot be put into words, can only be understood on a deeper level.
Bro, I wish I had a schlothing instead of a schlong

I hear Dave has a schlothing, that's so cool
by CatholicWaifu November 15, 2021
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