A practice developed on the London railway system by women to gain preferntial seating during rush hour periods. It involves confronting male passengers and asking them for their seat on the grounds that they are pregnant.
Female passenger: "can I please have your seat. I'm pregnant." (Whole carriage stares at man)

Male pssenger: "stop with yer foetus jacking, miss. I'm gonna need to see a copy of the ultrasound photo"
by The Gonzo Lecture March 9, 2010
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