First Base ( blackjack)

This is the first player to receive cards when the dealer deals the cards.
This is the player's seat farthest to the right at a blackjack table, from the player's viewpoint.

First Base ( poker )

The first position to the left of the house dealer in a poker game or at a blackjack table. In poker, also called age.

First Base (general terms )

The first seat nearest the shoe.