Come On, You Guyses!

I couldn’t believe my ears. The young woman told her friends, “You guyses help saved my day.” Guyses? C’mon, guys, it’s bad enough to call both women and men guys, but to try to make the plural AND a possessive that way just blew my mind. Why on earth couldn’t she make her life easier and just use “guys'”? Plural possessives are formed — easily — by forming the plural and adding an apostrophe (’).