nasal means your nostrils not nasal sex it never meant nasal sex before. its the inside of your nose as in nasal cavity , cavity meaning hole.
guy 1: who started this whole thing about nasal meaning sex?
guy 2: I know right! anyone that went to school would know it's your nostrils and the inside of your nose.
guy 1: good thing we know this.
Nasal is a cocktail of marijuana,Aspirin,LSD ground into a fine mixture its is usually rolled up into a joint a bit smaller than a winnie blue (cigarette) it is usually smoked in one drag and is commonly used in the outback/down under of australia and new zealand.
guy 1: mate you wanna do some Nasal
guy 2: oh nah that's nasty mate
guy1: oh nah nah the mixture mate
guy2: oh yeah mate fucking oaf