To uninstall Windows from one's computer and install a functional OS such as Linux.

(The original, classical definition of this term is "to throw something through a window". )
"I'm so sick of my laptop running so slowly, I'm going to defenestrate it and install Ubuntu!"
by Hugh Mannity October 27, 2009
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the act of yeeting a person or an object out the window
is good

bye boo!
shut up harold or i will defenestrate ur annoying ass
by erect nipple 2020 March 16, 2020
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To Throw out the Window, something MR. HAUPT threatens us with daily. His classroom is on the 2nd floor
John: You mean 2+3=8?
MR. Haupt: Dont make me defenestrate you
by handspringgirl97 March 29, 2009
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Noun. (defenestration) the act of throwing something or someone out of a window
Verb. (defenestrate) to throw something or someone out of a window
The different degrees of defenestration correspond with the number of floors the victim has to fall.
from latin:
de-down
fenestra-window
(defenestration from three stories)
Tyrone: Woah! Jaheed's so angry he just threw dat' ho out da' window!
La-a:AAAAAAaaaaaaaaaaaaaaaaaaaah! (splat)
Jaheed: Defenestration in da' third degree ho'!
(sentence
Sometimes a suicide by jumping out of a window isn't really suicide but actually defenestration to commit murder.
by The #1 Defenestrator January 24, 2013
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The act of throwing out Microsoft Windows and running Apple OS X/iOS or Android/Linux.
My defenestration was complete when I replaced my Dell with an iMac and synced my iPad and iPhone with it.
by Nocus June 14, 2012
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To throw someone out of a window. Not a very nice thing to do 👍
by I talk to much January 20, 2022
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