ussually consisting of 2 colors, or 1 color if refering to a "throwie" (toys,see throwie.) Bombing is ussually done with original style bubble type lettering that is filled in and then outlined, with another color of paint and maybe adding a drop shadow. Many forms of bombing. But filling in your bomb makes you .001 less of a toy! So, go out and fill in those throwies! For a visual, SEE BOMBS.