Op4

What is Op4?

OP4 stands for Opposing Force, the first and most popular expansion pack for Half-Life.

EdrianShepperdBoi - Wen is OP42 comeing out? Coz I kno thet the gman kept Shepperd coz he riminded him of him lol.

Lizzey

1. An abreveation for the name Elizabeth. The girls with these names are often wonderful friends and commiting girlfriends. They can be sma..

Atomic Peanut

1. Atomic Peanut is a character from the stories 'Peanut's life'. This character is an annoying child who calls his playstat..

Nubber

1. A variation of the word nub. Used as a more insultive way then its parent Nub. Guy 1: wtf you wallhacker! Guy 2: stfu nubber 2. 1. D..

Op4 Edit Meaning