Down and Dirty
Down and dirty is the final hole card dealt in seven-card stud.
The simple explanation
In seven-card stud, the last card is dealt face down. Players call that card 'down and dirty'. The phrase is also used in everyday speech to mean getting to the rough, final stage of something.
A closer look
The seventh card is dealt face down, so only you know it. It is the last piece of information a player receives, and the final betting round follows. Because the card is private, it can make a hidden strong hand or a bluff more convincing.
A practical example
In seven-card stud, the sixth card is dealt face up. For the last round, the dealer gives each player one more card face down. That card is 'down and dirty'.
Full explanation
Down and dirty is the final hole card dealt in seven-card stud.
Down and dirty is a stud term for the last hole card. In seven-card stud, players get three down cards, four up cards, and the last of the face-down cards is dealt on seventh street.
The phrase is also an everyday idiom for getting down to hard, final work, which explains the use for the last card.
After it is dealt, the last betting round takes place. Players who have stayed so far finally see all seven of their cards.
Seventh street is also called the river in stud.