"Big slicks make me sick, 'cause I hardly win with them" or "despite having lots of big slicks during yesterday's games, I still could not win a single pot with any of them." These are some of the statements that come with terms such as "big slick" in a game of poker. The term big slick is simply used to refer to a King and an Ace as hole cards in games like Hold'em. It is used to describe the prominence of an Ace and King cards that are available to a player in a deck. In a poker game like Texas Hold’em, a lot of starting hands are given nicknames.
One of the popular, most versatile and strongest hand is Ace - King or AK, also called the “Big Slick.” The pair is known to be a powerful hand that often wins Hold’em games. A hand with a Big Slick is a very powerful one due to the fact that if you flop with the King or the Ace, you'll have the top pair at your behest. These two also have the potential to make winning a breeze with the biggest straight and flush. If a player has big slick, and s/he goes all-in against their opponent who holds a pair apart from Aces or Kings, such a scenario is called a race.