An exclamation, usually mean spirited, that implies someone has made a mistake or misfortune has befell them.
Usually, it is used as a means to '
kick someone while they are down'
Buns can also be substituted for certain other
slang terms. For example, a person can say "my buns" implying the same thing as "my bad."
The term first became widely used in the New York area and has since spread
west.
EX 1:
GB: Dashiell and
Danny stole my subway sandwich and even my fork!
Anuj: BUNS FOR YOU!!
EX 2:
Ariel: Did you buy me a
cookie like you promised?
(Person who was supposed to bring cookie): Oh I forgot, my buns.