A throw up is a quick
graffiti bomb. Usually not the
writer's full name. An Unfilled
throwie is a hollow. If a throwie is filled its usually a crack-fill(quick back and forth strokes with fill colour).
The term throw up comes from the fact that the bomb is just thrown up on a wall, bus, train, etc very quickly.
i. JA fucked up
Saber's bitch-ass roller with
throw ups.
ii.You know that kid who throws up NE, what do they write?
Throw up also called a
throwie or throw.