One who seems to be friendly on the outside, but is secretly working for the Taliban. Usually of Pakistani origin.

CAUTION: If you see a Mannaan report him to the nearest authorities. May contain very dangerous explosives.
Joe: Hey, I met a Pakistani person today. He seems pretty nice.

Eric: Be careful, he might be a Mannaan
by America Lover1776 May 8, 2009
Get the Mannaan mug.