When ur in a fight and you jab cross hook/uppercut and knock them out mostly and Aussie fight term
(some blockes watching a MMA fight and one of the boxers gets knocked out)

Holy shit cunt he just gave him the left right goodnight
by Walley34 June 24, 2018
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To tweet goodnight

Tweeting goodnight is the lamest form of begging for attention. Suffice to say, that nobody that is on Twitter at the time to see your "tweet goodnights" gives a damn that you are about to go to bed. A tweet goodnight is what someone who doesn't have someone to tell or to "text goodnight" does to make them feel important.
"Well Twitter, I've watched all the YouTube I can for one night. Guess, I'll see ya tomorrow. G'Nite! # tweet goodnight #urbandictionary"
by mrRected April 16, 2010
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Farting on your significant others pillow right before they go to bed.
My wife didn't make dinner, so I gave her a long kiss goodnight.
by The Vee March 22, 2007
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when you knock out someone who is very snobby, or a person dell deserved of that knock out.
by great-no-pseudonyms-left November 27, 2013
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A phrase mostly used on internet forums such as 4chan when a major celebrety (usually a black male) "dies". This is not usually the case, and usually it is used to trick people into thinking that said person has died. (A corresponding picture will most likely accompany a non-matching name.)
The phrase takes its origin from The Big Lebowski, a 1998 movie starring Jeff Bridges and John Goodman, whose character (Walter) utters the phrase as Steve Buscemi's character's (Donny) ashes are spread into the ocean.
someone posted that will smith died, but his pic said eddie murphy! oh, that's a goodnight, sweet prince.
by CoJon the Jew December 30, 2009
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The art of making out with your sister before going to bed, and possibly fingering her
Yo dude, last night before I watched a movie, I TOTALLY gave my sister a Portuguese kiss goodnight!
by Some portuguese Dude September 2, 2010
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