OP 

Acronym for open pad.

OP tonight, were gonna party all night!

OP by Parpar01 July 2, 2017

OP 

A new form of oxycontin, designed as a rubber-like substance to prevent crushing and snorting

These OP 60s are so annoying. I just want to snort them!

OP by nardiman September 10, 2010

Op 

Op. An enemy

Callum is an op don't talk to him

Op by Gayboycamron.m January 29, 2017

OP 

Opening Post. The first post in a topic on an online discussion board, with which the topic is "opened".

- What's the URL?
- Read the OP!

OP by Mr. British July 17, 2006

OP 

Usually 8 year old minecraft slang- can mean over powered.

"Wow, that Salmon is so OP!!!1"
"Ye lad, I can't even rip up grass, that Salmon is sick!!"

OP by KitkatThatsHot July 12, 2016

op 

Aside from meaning Original Poster, "op" can also simply mean "oh" or can be a statement typed after something peculiar has happened, or something that leaves you speechless.

This meaning has been made popular by Tumblr.

Person:"I can hear my parents having sex in the next room."
Also a person: "op"

op by teenmother October 27, 2011

op 

means when someone spilled the tea and u don't know what to say

ambar:"andrea likes Elizabeth"
Norma:"op"

op by andreasuckstitties June 13, 2018