ABCN Share definition Flag A derogatory term used for Nepalese who were born and raised in the United States, and who act "American" (as stupid as that sounds). There are lots of ABCN in Washington D.C. ABCN by Emerald Bhandari September 23, 2005 0 0 Get merch Get the ABCN mug. Buy Now — $32.95 See more merch