Top definition
For men, the willful tasting of one's own semen after ejaculation to prove or disprove one's manhood.

This is usually accompanied by extreme feelings of confusion, anger, and a general sense of hopelessness.
I attempted the Schuepbach Challenge, but I just couldn't bring myself to actually taste it.

or

I actually tasted my own cum during the Schuepbach Challenge and now I feel nothing but immeasurable sadness when I look in the mirror.

or

The Schuepbach Challenge may just be the start of monosexuality (see monosexuality)
by Opal's Regular August 03, 2009
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