An amusing way to refer to male transvestites and pre-op transexuals, in the same vein as other rhyming or alliterative means of alleviating the ridiculousness of encountering men who are so psychologically damaged that they believe they are actually women trapped in men's bodies, because no-one has bothered to explain to them that they have X and Y chromosomes whereas women have only X chromosomes, and that their assertion that they are female is therefore medically and scientifically impossible.

See also:
chicks with dicks, cocks in frocks, sluts with nuts, dames with dongs, women with wangs, girls with grapes, princesses with penises, mums with plums, lads in lingerie, gals with balls, boys with boobs
I have an annual subscription to Schlongs in Thongs.
by Mr. Cardboard October 31, 2011
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A man thong that has a penis pouch a attachment
Man, dalton looks like a stripper with his schlong thong on.
by MachinegunKarley April 24, 2021
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