Travelling to a location or event with 3 or more people and a common goal.
We arrived at the concert posse thick.
1. When a group of guys do something crazy or stupid together making it look cool. Similar to the cheerleader effect.
The posse effect makes jumping off a bridge look cool.
When something stupid seems cool the more guys you have with you. Similar to the cheerleader effect. The more people the better.
Scooters look better when the posse effect os applied.
A group of men that like to hang out and have group sex
He Ralph, do you want to hang out with the Penis Posse tonight?
DA posse is a gang of wannalags hoping to take on any nearby gang in their hood!!!
Me and ma mate from the science are gonna round up some wannalags for DA posse to take on EBC o the weekend:p
A large group of grad students at Penn State who drink away their worries every week (and usually multiple times per week) at a hole-in-the-wall bar. Generally only consists of science-minded grad students. (N.B. The "groovy" times do not always have to involve alcohol, and can, in fact, involve many different substances.)
Last night I went out with the Groovy Time Posse, and bitched about undergrads while taking tequila shots.
When a “crazy cat lady” takes all 100 of her cats on a walk. Only happens late at night.
Hey! That crazy cat lady is out walking her ‘pussy posse!”