To inform authority of an action, usually the violation of a rule, that could lead to the person who performed the action getting in trouble. Can also be used to describe a person who is prone to such behavior.
Jeremy is such an op. I tried to cheat on my test, but he opped on me.
Please don’t op, bro. Don’t be a dick.
Please don’t op, bro. Don’t be a dick.
by FratHouseOnFranklin October 15, 2019
Get the Opmug. by Yungboy Yogi  July 6, 2017
Get the opmug. A word that is used express one’s forgiveness for their inconvenience or used to express something silly they didn’t mean to do. Mostly this word is used by people who are very polite and live in the upper mid-western states in the US.
by Midwestern Translator October 29, 2019
Get the Opemug. by Joe December 31, 2003
Get the opmug. by Niko Jims January 9, 2010
Get the OPEmug. by 905 shooter May 3, 2018
Get the Opsmug. 