Somebody who thinks they know everything and know what they're talking about, when in all actuality, they know absolutely nothing. They tell everyone useless facts that they pulled out of their ass to try and sound smart. There is no convincing them that they are wrong.
Person 1: Did you know that if you eat poison oak leaves, you'll never get poison oak?
Person 2: Um... where the fuck did you hear that..
One of the many ways to drink a tequila shot. First you lick your partners neck then you put some salt on the wet spot and your partner holds a slice of lemon between their lips. The way to drink the shot is normal. First you lick the salt then you take the shot then you bitethe lemon while kissing your partner.