After eating, smoking weed or drinking alcohol a strong sense of exhaustion tiredness or sleepiness takeover.
"I ate so much food im extremely sleepy now, i have a bad case of niggitis"
by Definitionof Beauty February 10, 2018
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Simply "Good Night" originating from 90's slang where the rule is to basically take the first letter of the word you wish to emphasize, and place it in front of "iggity." Then you would take your original word, and place it after the "iggity" you had created. It is common to see the original word dropped off once people knew what they were talking about, or it had become more "cool."
-also commonly used, but more ignored than niggity was "tiggity tight"
Evolution: niggity night

Person 1: night dude
Person 2: Niggity
by Loderunner April 17, 2005
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Used in the place of something like "Hell Yeah Nigga!"

Bascially to show complete agreement in the amazing situation that just took place.
Number One: "Dude did you see that sh%t?!?!?
Number Two: "Niggity Diggity!"
by diggitydigg July 19, 2009
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Alliterative slang for a highly potent nug (or any amount)of marijuana. The phrase is used in discribing the dankest and was developed as an alternative for the commonly used diggity dank. The term is especially common among those who are really high and feel the need to imitate ghetto slang.
Yo(referring to a crystaline, stinking bud of marijuanna),that is one niggity nug.
or
Smoke the niggity nug, smoke the diggity dank, but stay away from the shwiggity shwag.
by JigglinJon December 20, 2006
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originally developed by high school students during a halo match, it completely encompasses the character of a Boss Playing nigga
Check out Will, he's such a biggity niggity!
by Elliot B September 22, 2004
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A crazy black man, homeless, who is a street thug and thinks he is in the vietnam war. Extremely racist, profound, stinky, dirty, and uneducated. Drug of choice: Syscurp, crack, malt liqour, beer, street pigeons and sewage rats.
"Hey look there goes niggity dave chasin that sewage rat down the sidewalk."

"That niggity dave needs to get his teeth fixed."

"Niggity dave, niggity dave."

"That niggity dave is one crazy fuck!"

"Look that niggity dave is chili dogging dirty mike in that prius!"
by thatguynameddik123456789 September 18, 2011
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