Back into( poker )

1) Win a pot unexpectedly or by default. For example, in a lowball game, John drew three cards and caught K-Q-J. He passed after the draw, planning to fold if anyone bet.
The three one-card draws also passed,
all having paired and all afraid to bet, and John backed into the pot.

2) End up with a hand other than the one you were drawing to. For example, in seven-card stud, start with two pair on the first four cards and end up with a flush.