1. A situation where the result is a complete reverse (and practical mockery) of what was expected

2. A word heavy misused and abused in conversation today, mostly by people who think that using the word in any way will automatically make them seem intelligent. The word is usually misused to exactly mean "coincidental" or "tragic", when again it doesn't mean this (see #1)
If the heavy metal band Anthrax dies of anthrax, that would be poetically tragic, but not ironic. If a diabetic crosses the street and is run over by a truck carrying insulin, then it's ironic.

"Isn't it ironic that the pop song 'Ironic' contains absolutely no examples of irony?"

"One issue of Mad Magazine showed Alfred E. Neuman face-down in the desert, crushed to death by a parachuted crate of first aid supplies. Now THAT was ironic!"
by Bill M. July 27, 2004
An unexpected result, often the opposite of what was expected to happen.
Isn't it ironic that ISIS is attacking France with weapons Made in France but sold to Syria.
People posting things with #PrayForParis, while their government earnt the money to provide for internet by selling weapons to ISIS, is quite ironic.
by CrazyKai November 15, 2015
That a song about things which are ironic makes no mention of any things which are, in fact, ironic.
by Anonymous May 7, 2003
containing irony

irony:
-the opposite of the literal meaning
-a mismatch between the expected and the actual result
pro-lifers making death threats to Michael Schiavo is ironic
by Tyrone March 30, 2005
The use of irony.
Isn't it ironic that a song entitle "Ironic" has nothing to do with irony.
by JR December 3, 2003
a) Something that is contradictory.
b) Something that is complete and utter bullshit (but often accepted nonetheless.)
* see hipster

Anonymous twentysomething in Brooklyn: "I am NOT a hipster!"
<silence>
ironic.
by Captain American't July 11, 2011