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1. (interjection): "Ick. Nast." - used to express extreme emotions of disgust

Etymology: A compound expression coined by the brother of a young woman who hooked up with douchebag extraordinaire Jon Gosselin. This term utilizes the interjection "ick" followed by "nast", the abbreviated word of "nasty". The pause between the two words emphasizes the extreme emotions conveyed by the speaker, and distinguishes it from the adjectival form (below).

2. (adj.): "ick nast" - disgusting, repugnant; sketchy

Etymology: The interjection evolved semantically to an adjective due to popularization on the internet. It has become common use in the spoken vernacular amongst those who frequent celebrity blogs. The pause between the words has been omitted in this form.
1. (interjection) "I mean, no one wants to hear his sister having sex, let alone with a married dude who's, like, almost twice her age and who has eight kids and a maybe-crazy wife. Ick. Nast."

2. (adj) Dude, that ick nast guy over there with the Ed Hardy shirts, hair plugs and diamond studded earring is hitting on 20-somethings. Shouldn't he be taking care of his 8 kids?
by karm0n July 23, 2009
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A combination of 'icky' and 'nasty' used in reference to something both disgusting and dirty, especially in a sexual way.
When I realized what he'd meant by 'bugger', my only reaction was a sick look and to say "Ugh, icknast."
by birdy October 27, 2003
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