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.

Its The Principles Of It

1. when someone does something wrong and your not really mad at them your mad at what they did so its the principles of what they did Man:..

Hankroll'd

1. Like Rickroll'd, only featuring Hank Green, from the vlogbrothers Ahhhh, crap man! I just got Hankroll'd! See rickroll'..

Narbular

1. What something is when its totally headmastic. It can be used in place of awesome, richter, crazy, rediculous, delicious, bangerang,the..

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Op4 Edit Meaning