GMS 

GMS aka Guy Menstrual Period. Same thing as PMS but for Guys. Usually the guy is very irritable, will get mad over the smallest issue or will be more emotional then usual.

Chris: Dude watch out for scott for the next few days he has a serious case of GMS.
Scott: Thanks for the warning I was just about to tell him i had sex with his sister.
Chris: That would be a big mistake he would ether kill you or cry for the rest of the night.

GMS by bigreese November 9, 2009

gms 

“good morning {streaks}” on {snapchat}

someone sent you a snap that just says “gms” early in the morning.

gms by kindaleem K May 16, 2018

GMS 

Abbreviation for "Guilty Mom Syndrome," a wonderfully flexible term which refers to the syndrome of mothers of young children feeling guilty about their inadequacies and trying to blame the world, but also to onlookers who wonder if that guilt would not be better addressed if the mothers would take responsibility for their own unhappiness.

~ "Doreen just bought Honey Bee another boatload of toys. Now she complains she can't pay the phone bill."
~ "Chalk it up to a very bad case of GMS."

GMS by al-in-chgo August 30, 2018

GMS 

Text language for Giggling Myself Silly

After Laurie sent me the pic of buster in a birthday hat I sent a text back that said GMS.

GMS by Teenimeeni February 20, 2011

GMS 

Acronym for Good Musical Spirit

That a cappella group is bursting with GMS

GMS by jknee April 23, 2006

GMS 

Known as Griffen Matt Syndrome, this is were you repeat somthing that has just been said without knowing/realizing it had/has been said.

Wow, GMS, i cant believe i just said that right after you.

GMS by Matt March 1, 2005

Gms 

A school where the kids are mad dumb. There are lots of furries at this school. It's also referred to as Gay-ms
Made by someone at gms.

Gms- a school thats dumbbbbb
Jim- You see that furry over there!?
Conor- yea, I bet they're from cms
Jim- Dont you mean Gay-ms

Gms by your dad 😽 November 2, 2019