You use 'Mother of Gaia' when you refer to something that surprises you, like when you say something like 'OMG!' Gaia derives from Greek mythology, which directly translates to Earth in the Greek language.
Mother of Gaia, my pie's gone burnt!
Y'all are fucking degenerates ;p
Just don't fuck with the dü. He one crazy ass mother fucker. Oh ya and get a new dictionary mõth3r fûckēr
The mother of the president of the US or other head of state
She is the first mother of the President of the US
Getting a hideous hair cut when your mother follows you to the barber
Oh no! What happened to your hair? :William
I got a Mother-bring-haircut
a husbands dad has a live in girl friend but not married that you like is a mother in love.
I'm going over to give my mother in love a present.
Something that can't be defined, usually people thinks she's a whale, sometimes a lion that's hunted by alex.
EX1: Is that a whale? No, it's Fabio's Mother
EX2: Look what I've just drawn! Wtf is that bro, a random sketch? No, it's Fabio's Mother.
"May you have children who turn out just like you." Used by parents who are fed up with their kids' attitudes or behaviours.
My kid won't clean his room; it's the mother's curse come back to haunt me! I never cleaned my room either when I was a kid.