Nocturnal bird of prey with binocular vision, binaural hearing, sharp talons & feathers adapted for silent flight! They range from almost 6" to over 33 1/2". They can turn their heads up to 270 degrees!

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

1.- Another term for (computer) hacker
Perhaps it comes from the tendency of both, hackers and owls to take advantage of darkness
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2.- In South America, "owl" is said to a person who forebodes bad things (that become true) to other people.

The closest thing to instant messaging in Harry Potter.

An Acronym that stands for Older Wiser Lesbian. Usually used to refer to an older lesbian with a younger partner. Parallel to cougar, but for lesbians.

Another word for joint or spliff.

Similar to lol, owls is something that you write when you find something amusing. The history of the phrase is quite clear, as web studies show a gradual evolution:

lol -> lols -> lawls -> jowls -> owls