Top Definition
Someone who lies about what they actually think about while pleasuring themself. They are often closeted homosexuals who claim to be pussy slayers. They sometimes wear disguises such as masks while out in public seeking other lyingfappers. They love urban living and are drawn to cities such as San Francisco. Lyingfappers usually resemble terrorists and can be found hanging out with other kabob fanatics. Their car of choice is usually a hybrid of some sort.
That lying fapper told me he was going out on a date with a girl and then I saw his Prius parked at a Turkish bath house.
by Robert Himler November 03, 2013

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