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To an extreme degree.
This word was invented and is in use by people in the 707, part of the bay area.
That girl is actin slightweight saucy
by Pepsidrinker14 November 24, 2006
root word: lightweight

derived from lightweight. an adjective used to describe someone or something minimally. when people got sick of saying lightweight, slightweight was born.
I'm gonna get slightweight faded tonight.
by The Great Whale November 02, 2006