A term commonly employed by chavs
or a similar sub-species to describe the hitting or slapping of an individual in the face.
Due to the nature of chavs worldwide, the grammar of the sentence will be embaressingly incoherent and include a vast combination of other nonsensities. As a cause of the limited intelligence of said scum it is widely believed NOT to be an amalgumation of the two standard english words "bang" and "slaps".
This word is most usually used by the ringleader of a "crew
" when threatening an unsuspecting, inoffesive member of the general public.
"i is gunna blaps u up good ((mun cos u is dissin ma homies/mum)- innit, bruv, safe, blud, bling, spec, baccus)"