O

Offsuit adj.  Hand with different suits, e.g. 54 (abbreviated: 54o)  Unsuited cards are notably less valuable.

Omaha high-low n.  Version of Omaha hold'em where both the highest and lowest hands win.

Omaha hold'em n.  Usually shortened to just Omaha.  Version of hold'em where each player gets four (not two) down cards, and uses two and only two to form a hand with three board cards.  Contrast Texas hold'em.

On the button vp.  Sitting at the dealer position, the best possible place.  Derives from the "dealer button" often used to mark whose turn it is to deal.

On the come adj.  To be on a draw.  Teresa bet on the come.

One-end straight np.  A type of straight draw that can only be filled at one end.  There are two: A234, and JQKA.   Sometimes considered an inside straight, because the drawing odds are the same.

One gapper n.  1. An inside straight draw, such as 89T_Q.  2. Single gap connectors, e.g. JK.

One-on-one adj.  Just two players, aka heads up.

One-way straight np.  Inside straight.

Open v.  Entering a pot first.

Open call n., v.  Entering the pot first, and with a call, not a raise.

Open ended straight n.  Also two way straight, or just open ender.  A straight draw that can be completed by eight different cards.  The hand 6789 needs either a five or ten.  Open draws are twice as likely to hit as inside draws.  See also runner-runner or double inside straight draw. 

Open raise n., v.  Entering a pot first with a raise rather than a call.

Option n.  When the big blind faces an unraised pot, preflop, he has the option of checking, or raising.

Out draw v.  Making a hand and winning, especially as the underdog.  I had kings and tens, but she out drew me.

Outs n.  Cards that improve a hand.  The hand 89 with board TTJ has twenty-three outs.  The eight 7's and queens make straights.  Nine remaining clubs make flushes.  The six remaining 8's and 9's make two pair, or a runner-runner full house.  (The remaining tens and jacks do not help because they are not of exclusive benefit.)  Calculating outs and pot odds is a basic hold'em skill. See also live outs.

Over adj.  Top pair in two pair.  I have nines over threes.  Or just nines over.  Aka up.

Over betting v.  Betting more than a hand is worth.  He over bets his low pairs.  A form of loose play.

Over call n.  A call after someone else has already called a bet.  With two oponents showing strength, it takes a stronger than usual hand to make an over call.  Bets may be bluffs, but calls almost always indicate strength..

Over card n.  A card(s) higher than another.  If both your cards are higher than any on the board, you hold two over cards.  If the board has a card higher than your two, there is an over card showing.  Pairing the board is not so valuable if there is an over card that someone else likely has.

Over playing v.  Over estimating the value of a hand by calling too far or betting too much.

Over the top adj.  See come over the top.

Overlay n.  A statistical edge.  44 has a small overlay against AK.

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