OMS 

(old man sexy) a man over the age of 40 who is extremely attractive

The guy from Law & Order SVU is wicked OMS.

OMS by mamasitaaaa69 November 4, 2010

OMS 

Official Monkey Spanker. This is a term given to large wankers. Often used as a reply to creepy people on anonymous chatting sites when faced with the question, "ASL?"

OMS is a chronic disease that may sometimes be deadly. It is not a condition to be taken lightly.

You: hi
Stranger: heyyyy babyyy asl?
You: oms?
Stranger: whats dat?
You: OSCAR-FLOYD

You have disconnected.

OMS by Oscar-Floyd Kliewer-Fleming December 9, 2010

OMS 

Old Man Shaver, self explainitary really, and old perv who shave's people, or enjoys shaving

Oh no look out! its OMS

OMS by Captain fez April 3, 2005

OMS 

Short for 'Oh my Stump', referring to Patrick Stump, the lead singer in Fall out Boy.

Person 1: "OMS, I can't think of an example! But did you know I love Patrick Stump?!"

Person 2: "I figured that when you started saying 'Oh my Stump'"

OMS by EmmiezLovesFOB June 29, 2009

oms 

stand 4:

Oh
My
Suga

some people say omg or omd but oms is also used as well.
normally means opps

omd omg

oms, i forgot my keys at home.

oms by Deelishas May 19, 2007

OMS 

Oh my spaghetti monster

"Oh my spaghetti monster" OMS is the Atheists' version of "omg".

OMS by Heatha May 6, 2015

oms 

It means oh my sempai commonly used by kawaii ~chan

Oms that is so cute

oms by Kawaii anime boy May 13, 2016