A term usually describing fashion; sometimes used as an insult. Examples include, Starbucks, crop-tops, uggs, leggings, washed and/or ripped jeans, leggings, side-on vans, etc.
Despite the thought that such a word is a negative description of someone, in this instance it's considered a compliment! Basic guys are great, they have no bullshit. Won't get shitfaced and nail your pal. Has a big ol' shag pad. Likes to drink Coke. Not the illegal kind, though! The fizzy kind. The basic kind. Be a Micheal. Be a basic.