opensourcerer 

Of or relating to a person(s) who actively contributes to an open-source software project.

"Hmmm should we keep this code private, or publish it for the opensourcerers to mull over?"

opensourcerer by criptoe May 22, 2007

openSUSE 

An open-source, free, operating system developed by the openSUSE Project based off Linux. The GUI for openSUSE is often either KDE, or GNOME. openSUSE is often a good alternative for rather old systems, with generally easy usage.

The box said "requires windows ME or better..." so I upgraded to openSUSE!

openSUSE by loki1717 December 27, 2008

openly based 

To say something so retarded that its unbelievably funny.

"This Country Is Doomed it is doomed, Not Just Because Of African Americans" - a REAL openly based Joe Biden quote

openly based by JoeBidensHusband June 5, 2021

openmouthboy

a boy that has an open mouth and hates the band Car Seat Headrest.

Wow, he really looks like an openmouthboy.

openmouthboy by amouthboy August 4, 2021

Opening day of Shopping 

Where all the women go on insane long shopping sprees followed by a night of excess alcohol, because their husbands are gone for opening day of gun season.

Sarah: Betty, its the opening day of shopping this weekend!

Betty: Ill grab his credit cards!

Opening day of Shopping by brandon2k9 November 5, 2009

getting left on opened 

Reffering to the social media app "SnapChat"
When someone opens your message and doesn't respond
What someone does when they are really pissed

Getting left on opened: Damn last night I got in a fight with Jess and she left me on open

getting left on opened by ElizaE July 10, 2016

can opener 

Another sex name way of calling a guy that is helping getting rid off their female partner or girl friend's virginity for her first time.

A guy who helps his female partner or girl friend pops her cherry by him being her can opener.

can opener by WT87 July 15, 2011