One who enjoys licking anothers anus. Also see rim job
That guy couldnt get enough of my bung hole. What a freakin' keister feaster!
by GhengisGhandi March 24, 2008
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Someone who constantly fantasizes about giving and receiving oral to anal stimulation.
Given that your girlfriend always talks about eating ass, I bet she's a real Keister Feaster.
by Satan's Sphinxter October 18, 2020
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