n An explosive device used or intended as a weapon, (especially) one dropped from an aircraft.
n (dated, often with the) The atomic bomb.
n (figurative) Events or conditions that have a speedy destructive effect.
n (archaic) A mortar shell.
n (colloquial) Any explosive charge.
n (slang) A failure; an unpopular commercial product.
n (US, Australia, informal) A car in poor condition.
n (UK, Australia, slang) A large amount of money.
n (social) Something highly effective or attractive.
n (chiefly Britain, slang) A success; the bomb.
n (chiefly Britain, India, slang) A very attractive woman.
n (often in combination) An action or statement that causes a strong reaction.
n An obscene word identified by its first letter.
n (American football, slang) A long forward pass.
n (rugby, soccer, slang) A high kick that sends the ball relatively straight up so players can get under it before it comes down.
n (basketball, slang) A throw into the basket from a considerable distance.
n A cyclone whose central pressure drops at an average rate of at least one millibar per hour for at least 24 hours.
n (chemistry) A heavy-walled container designed to permit chemical reactions under high pressure.
n (obsolete) A great booming noise; a hollow sound.
n (slang) A woman’s breast.
n (professional wrestling) A professional wrestling throw in which an opponent is lifted and then slammed back-first down to the mat.
n (slang) A recreational drug ground up, wrapped, and swallowed.
n (colloquial) An act of jumping into water while keeping one's arms and legs tucked into the body, as in a squatting position, to maximize splashing.
v (transitive, intransitive) To attack using one or more bombs; to bombard.
v (transitive, figuratively, often with with) To attack or annoy in the manner of a bombing.
v (informal)
v To jump into water in a squatting position, with the arms wrapped around the legs.
v To add an excessive amount of chlorine to a pool when it has not been maintained properly.
v (especially with along, down, up etc.) To move at high speed.
v (slang)
v (reflexive) To make oneself drunk.
v To cover an area in many graffiti tags.
v (transitive, intransitive) To fail dismally.
v (intransitive, computing) To crash.
v (transitive, slang) To make a smelly mess in (a toilet).
v (obsolete) To sound; to boom; to make a humming or buzzing sound.
v (slang) Synonym of parachute (“wrap illicit drugs in a covering before swallowing them”)
adj (slang) Great, awesome.
n (informal) The atomic bomb; the capacity to launch a nuclear attack.
n (historical, archaic) Ellipsis of bomb ship. [(military, nautical, historical) A ship armed with high-angle mortars firing explosive or carcass shells, and specialized for shore bombardment.]