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.
