OMS is an acronym for “old man syndrome”. If you can’t remember what you ate in the last few hours or even in the last few minutes then you suffer from OMS. Some signs of OMS are:

1) Accidental pooping
2) Accidental pooping on someone else
3) Random yelling
4) Saying “what” all of the time when someone asks a question
5) Wearing a cell phone belt clip
6) Thinking that a coin purse is a useful item to carry around.

7) Hating everything, literally peeing hatereade.

8) Forgetting everything
9) I forget what I am typing about…..
bob pissed himself again, I think we need to put him to pasture before his OMS gets the better of him.
by _psyco February 26, 2011
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This is an expression for something mighty hilarious.

“Bruh that shi had me OMS!” 🤣
by Maria Kae May 4, 2019
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A large, marsh dwelling, amphibious bipedal creature. Can be spotted at dawn or dusk when it comes out to hunt its favoured prey, the cat.
In a sentence: don't go out at night or oms will get you
by 4lbperchwannabe November 24, 2018
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Samantha Stevens: "OMS! Aunt Clara that spell went awry!" Darrin: "SAMANTHAAAAAAA!"
by lrachelw November 22, 2010
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Oh My Spock!
Spock is the Vulcan second in command on the USS Enterprise in the popular television show Star Trek: The Original Series, back in the 1960s.
Captain Kirk: Oh My Spock, that Orion Slave Girl is smokin'!
Bones: Agreed.
Scotty: Ay, OMS
Chekov: All thrusters full ahead!
Sulu: I like boys.
Spock: Silly Sulu, space is for real men! You are highly illogical.
by Mrs. Spock March 10, 2010
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The shortened form of "old man in speedos"

used at public pools or beaches
usually combined with an involuntary shudder.
"OMS alert! run awaaaaaaay!"
by shannanigans September 25, 2005
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