An enemy. Similarly, FOE can also be acronym for Forces of Evil, as used in many toy commercials which feature the line "defeat the Forces of Evil!"
by TheForceofEvil March 03, 2014
by Futurefoe April 12, 2006
Stands for foot odor, used to describe a woman wearing open sandals, flip flops, open house slippers and her feet having a bad odor.
Her feet smell vile. She's a FOE.
by SweetCupcake May 21, 2013
by JohnnyMize April 10, 2003