Here are a couple of definitions that may not actually be found in the dictionary but in the real sense of it, are accurate.
Atom Bomb : An invention to end all inventions.
Boss : Someone who is early when you are late and late when you are early.
Cigarette : A pinch of tobacco rolled in paper with fire at one end and a fool on the other.
Conference : The confusion of one man multiplied by the number present.
Compromise : The art of dividing a cake in such a way that everybody believes he got the biggest piece.
Conference Room : A place where everybody talks, nobody listens and everybody disagrees later on.
Classic : A book which people praise, but do not read.
Criminal : A guy no different from the rest….except that he got caught.
Committee : Individuals who can do nothing individually and sit to decide that nothing can be done together.
Diplomat : A person who tells you to go to hell in such a way that You actually look forward to the trip.
Etc. : A sign to make others believe that you know more than you actually do.
Experience : The name men give to their mistakes.
Father : A banker provided by nature.
Lecture: An art of transferring information from the notes of the lecturer to the notes of the students without passing through “the minds of either”
Lecturer: A Lecturer is a person who has a bad habit of speaking when someone is sleeping.
Miser : A person who lives poor so that he can die rich.
Office : A place where you can relax after your strenuous home life.
Opportunist : A person who starts taking a bath if he accidentally falls into a river.
Optimist : A person who while falling from Eiffel tower says midway “See I am not injured yet.”
Politician : One who shakes your hand before elections and your confidence after.
Philosopher : A fool who torments himself during life, to be spoken of when dead.
Smile : A curve that can set a lot of things straight.
Tears : The hydraulic force by which masculine will-power is defeated by feminine water power.
Yawn : The only time some married men ever get to open their mouth.