The act of releasing fecal matter from your anus.

Act of 'dropping a bomb' or 'bombing it'.. A 'bomb' is used to describe a drug (typically ecstasy pills or MDMA), which has been ground up and wrapped in a cigarette paper/ tissue paper or other suitable 'wrap' and swallow it.

Smelly smelly in the bathroom

to pinch off a really potent air biscuit; in other words to cut a nasty ass fart.

1.A drive-by shooting of sorts with no particular target. The sole purpose of dropping a bomb is to mark and destroy everything in the proximity leaving no chance of survival and to deliver the message that your crew is not to be fucked with.
2. A drive-by that is more extreme than usual in which anything is targeted leaving mass destruction in its wake.

When a woman finds out that she is pregnant she "drops a bomb".