Referenced from the Chappelle Show when Wayne Brady was the guest. It is what you say before you want to whoop someones ass/take their money/commence some form of violence or robbery. Sometimes mistaken for 'brace yourself'...which is wrong.
(Whilst watching Chapelle Show)
Wayne Brady: There he is....BREAK YO SELF FOOL!
Man: AWW SHIT, IT'S WAYNE BRADY, SON!
*Wayne Brady shoots the guy down*
Rhyz: haha that's funny, BRACE YO SELF FOOL
Helena:.........you just killed it........just...no.....
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)