1. Last resort weapon used in the Atari game "Defender" to destroy all aliens in sight.
2. A silent, but awful smelling fart dropped in a group of people with hopes of giving yourself some room, getting people to leave you alone, or just to make someone say, "oh my god, who did that?".
There were some girls blocking the bar and I dropped a smart bomb on them to get them to move. They moved.
Noun. Euphemism referring to a pair of female breasts, which, once activated, can be pointed at a male target and zero in on his most vulnerable area, rendering it under the control of his attacker. (Not his brain.)