To give a fatty a blowjob, or suck on a fatties fat bits in a sexual manner.
Sarah "Watd u do last night Rachel?"
Rachel "I went down to KFC and was chugging a fatty"
Sarah "How fat was he?"
Rachel "He was fat like a pregnant Aborigine on a diet of lard"
Sarah "Wow, that's pretty fat"
by Arther Radley October 26, 2008
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