Claudia Rosett has fun recommending replacements for some current terms being bandied about in Foreign Policy discussions:

War on Terror
Weapons of Mass Destruction
Nation Building
United Nations
U.N. Resolutions
President or Prime Minister
Suicide bomber
Roadmap
New World Order

She doesn't really recommend replacements, so I'll suggest my own:

War on Terror = Defense of Humankind
Weapons of Mass Destruction = The Adults Table
Nation Building = Pouring Money Down a Rathole
United Nations = The Mad Tea Party
U. N. Resolutions = Red Tape
President or Prime Minister (in non-democratic regimes = Warlord
Suicide Bomber = Walking Land Mines
Roadmap (formerly "the Peace Process") = Blind Alley
New World Order = the Pax Americana or the Second Dark Ages (depending on the outcome of American politics in the 21st Century)