According to the fictional character Will Smith from the NBC sitcom Fresh Prince of Bel-Air it refers to the Philadelphia slang term for snack packs.
back in philly we call snack packs boomsheeka
af Merc-with-a-Mouth 14. juli 2009
a racial slur for describing people from India
Look at those boomsheekas over there with the dots on their forheads.
af cabajul 10. maj 2009
A big fat black woman
Hey Jamal Look at that Boomsheeka shakin her ass
af Paul 9. februar 2004