Sudan’s favorite dish is ful, brown beans stewed for hours in a large cauldron (gidra)… In some places, a poor man’s ful is served using the bean water left over in the gidra, mopped up with bread and onions. This dish is called bush, as it derives from the shortages of the early 1990s when the first President Bush cut aid to Sudan in response to the Sudanese government’s support for Saddam Hussein in the first Gulf War.
–Bradt’s Guide to Sudan