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.
Quick Answer. Five short blasts from a boat on the water signal that the pilot of the boat doubts the action of another nearby craft trying to avoid a collision, according to the New South Wales Roads & Maritime Services. These signals also mean the pilot of the ship has concerns about the proximity, course and speed of a nearby boat.