In flop games, a player drawing to, or even flopping, a straight with undercards to the flop has the idiot end of it. A player with 8-9 betting on a flop of A-T-J puts himself at great risk, because many of the cards that complete his straight give credible opponents higher ones.
IDIOT END
Meaning of IDIOT END in English
Poker English dictionary. Английский словарь покера. 2012