To be performing any activity which would be considered unfashionable or unrighteous in any context. NOT TO BE MISTAKEN FOR A MISPRONUNCIATION OF THE WORD ASS OR ASSING. THIS IS A COMPLETELY DIFFERENT WORD.

One who is ossing around is an oss
(British accent)I am the self-nominated governor in this here territory and I declare that there shall be no ossing here. No ossing there shall ever be from this decided moment.

<Guy is ossing around>
(British accent) Excuse me! You there! Yes you there! I couldn't help but notice as I was marching the streets on this day that you appear to be ossing around. As a figure of authority who enfources the laws of the land I request that you discontinue your ossing activities as it is against the law stated by the governor above.
<guy stops ossing>
(British accent) Good citizen, I'm satisfied with your discontinuation of your ossful activities and will hereby see that you no longer shall be ossing around again.
by Cameron12345 June 2, 2007
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OSS it's a pretty generic term derived from Japanese martial arts. It is a particularly enthusiastic way of saying “yes” or to acknowledge something or someone, similar to the U.S. Marines when we say “OOH-RAH”.

The famous “OSS” has many origins. The first definition of “OSS” as an abbreviation for Onegai Shimasu, which translates into a request, a solicitation, an invitation like “please”, “if you may” or “with your permission”, much used when inviting a partner to train.
Sensei: Are you ready?

Kouhais: OSS!
by WhiteBeltGabi January 15, 2022
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So then he was telling me that I'M a slut oss!
by effyoubiatchesssss December 5, 2010
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A person that really likes dick and anime, usually dwelves in some sort of basement. A living example of hemorrhoids
-Hey is that Osse?
-Yea, what a fucking looser
by Billy Herrington :( September 25, 2018
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Pronounced aw - ss - dh
The quality of being within a state that exists between the quality of "based" and "cool".
The opposite of unced.
by JpackOrange July 14, 2022
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