A describing word used primarily by American armed forces during Operation Enduring Freedom.
This term was largely taken to mean that a friendly target (usually British) was engaged accidentally. However it has recently come to light that the Americans are so angry at Britain for unleashing Leona Lewis on them that they randomly fire on British units whenever 'Bleeding Love' comes on Iraqi Radio.
HELICOPTER PILOT: "I'm going give those Brits some friendly fire."
1. Usually occurs when two males are involved in a threesome with a consenting woman, and one of the men inadvertently sperms on his buddy while the act is taking place. Is most severe when the victim is hit near the head or the butt hole, in which case the threesome usually ends. Usually occurs during a switch or swap. Can happen in a threesome involving all women, provided they are potent squirters, in which case it will usually be rubbed in by the recipient and the threesome will ensue with even more intensity than before.