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1. A test you perform upon yourself to see if you really want to date the woman you're with or if you're just trying to have sex with her.

2. Putting on pornography and masturbating an hour before going on a date. Upon ejaculation, if you still feel like going on the date, you are really serious about having a relationship with the woman. If not, then you're just looking for sex and have saved yourself a ton of cash.
Jenny got stood up by Jonathan the other night. Apparently he did the Banach Test and fell asleep soon after.
by NyC PrO July 27, 2012
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