A poser onion is basically another word for "poser". It was derived from the Veggie Burger bags from A&W. The bag features three vegetables all smiling. One day, while partaking of this burger, it was discovered that the onion looked somewhat suspicious, and out of place looking the way he did. It was decided that he was a "poser onion", and anyone who was a poser, is also a poser onion.
by Taylor Craig August 05, 2005
by Mackenzie_1991 July 29, 2008
by Dfell19 October 03, 2015
customer: give meh a burger with lots of onions noob
burger guy: ok that will be $2.99 plox
customer: wtf why is there a seahorse on here.
burger guy: sorry about that cant concentrate we got some serious onion eye back here.
burger guy: ok that will be $2.99 plox
customer: wtf why is there a seahorse on here.
burger guy: sorry about that cant concentrate we got some serious onion eye back here.
by spoongar December 09, 2009
by Gourmet Princess April 24, 2003
Placing one's fist into another's rectum (also known as fisting) and then proceeding to fanning open the hand and fingers, creating a blooming onion-like appearance.
by Taylor, B October 29, 2005
by asia July 12, 2004