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1. n. A brand of paint that glows under blacklight. Was popular in the 1960s. Sold in bright, fluorescent colours that have been known to cause partial blindness.
2. adj. A word for any obnoxiously bright colour.
'I saw this guy wearing the most insane pants yesterday...they were DayGlo green...'
'I expect he was on acid.'
by Rozeh April 08, 2009
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Dayglo = Northern Scally Chic. The term ‘scally’ was coined originally in Liverpool to group together a certain type of person through their clothes, language and ideals. A dayglo is a southerner, often an ex-chav, who embraces the scally dress code specifically.
Your a dayglo........go away.
by Suncream June 24, 2005
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