This is a song title performed by M.I.A. The song's title word "Bucky" is a reference to the London grime slang word for a gun, while the composition is lyrically influenced by her experiences of civil war in Sri Lanka and how the songwriter viewed the journey of rap music. ~~ M.I.A.
It's a very interesting phrase meant to symbolize the dire unrest in several sovereign nations. "Bucky", as he is known in the song, is actually an aspiring photographer, bent on world domination. He "done gun"'ed someone by pointing his gat in their faces and pulling the trigger. That sent the person - let's call him Joey - to eternal hell with the Devil - let's call him Drew.
"We want BuckyDone Gun. We will not fight and run. We want Bucky Done Gun. Get crackin', get get crackin'."
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)