"Dog on Tuesday" is a synonym for going crazy, mentally and physically.
Word origin: Dogs dig up shit angrily on Tuesday, therefore they are fucking crazy.
Bro, I'm so dog on Tuesday right now.
A day (can be any day) when everything is going really well then something goes terribly wrong.
This sunny summer day has become a real dog's paw Tuesday after finding out I got fired.
This hike turned into a real dog's paw Tuesday after the bear ate Teresa.
To have relations in ones car on a Tuesday
Can't hang out tonight lads its Dogging Tuesday, the missus is warming up the car.