Literally means nothing, but generally used as a greeting or goodbye. The phrase may also be used to describe a moment of guys being dudes.
*Kyle walks down hallway*
*Sees friend walking to his direction*
"Hey dude, Posted Up in York!"
"Haha, Posted Up in York!"
*Kyle and friend continue walking to their destination*
*Sees friend walking to his direction*
"Hey dude, Posted Up in York!"
"Haha, Posted Up in York!"
*Kyle and friend continue walking to their destination*
by kalechow March 6, 2019