On the Internet in 2015 it's tacitly understood that we can trace most memes back to black people, that every couple of minutes a black kid somewhere is probably coming up with a new viral dance, a hilarious slang term or a Vine trend that'll be endlessly riffed on and ripped off by white people.
-blast. A suffix meaning an immature precursor cell of the type indicated by the preceding word. [G. blastos, germ]. immature precursor cell type; the cell type is denoted by the preceding syllables, e.g. osteoblast.
6. To strike with a lot of force in order to remove something, as with a pressure washer or sandblaster. In this usage, a noun can be used between blast and off. The sidewalk looks so clean this morning! I guess someone from the township blasted all the stains off of it. We can blast off that graffiti with the pressure washer.