Totally military dating
Buckshee equipment or ammunition is outside the normal accounting system and is often bartered by those who find themselves in possession of it.The origin and nature of the stores determines whether this is a serious issue.(USN) : In boot camp, a company (group) of recruits who are incapable of performing any task correctly, regardless of the rewards or consequences.Soldiers preparing to turn in weapons line up and dry fire their rifles into the barrel. In semi-polite company this is referred to as a Charlie Foxtrot (from the NATO phonetic alphabet) .Also used as slang to describe the "area effect" nature of artillery.(US Navy & Marine Corps) A high-gloss dress shoe, typically made of plastic rather than leather to enhance gloss and eliminate the need for polishing. By extension from (1), the Canadian Forces insignia in general.(US Army) Stands for "Case Of The Dumb Asses." Spoken in both full context and abbreviation.
So you might call out "HOOTER 01, spiked from 300 (degrees)" and Hooter 2 might call out "Buddy spike".
He may have locked you unintentionally, or to help find you visually, etc.
This term was used, somewhat incorrectly, in the movie The Incredibles.(UK) Spare, unofficial.
In air exercises, it is common to "spike" or lock onto a friendly without engaging.
This causes the targeted aircraft's defense systems to warn of active targeting.