Milton Butts and I were playing poker in Bryan, Texas, where they had a good game going on the weekends. We'd been playing for a couple of days when a hand came up in which I had a K-9. I made a pretty good hand with it, but lost the pot and went broke. As I was driving back home to Houston with Milton, feeling kind of disgusted about going broke with that K-9, we passed by a sawmill where a man was sawing logs in the lumberyard. "As hard as that guy works for his money, I'll bet he would never go broke with a K-9", I told Milton. And that's how K-9 got named "Sawmill." Some of those names are still going around –Doyle Brunson mentioned the sawmill hand in his book,Super/System

There is also a story of an early computer simulation in which Q7 was a break-even hand Nickname for the IBM Q7 (AN/FSQ-7) SAGE computer. This type of vacuum tube computer was physically the world's largest computer ever built.

Other sources suggest it is Joe Montana's quarterback rating

The beer hand has the worst chance of winning of all possible pocket cards in a full table playing Texas Hold'em. It is slightly better in short-handed games because the fact that it is not possible to make a straight or flush without hitting four appropriate community cards is less important in short-handed games.

One time while playing with Jimmy, she [the dealer] had noticed that trash cards were hitting the flop quite often especially 6's and 3's, so Jimmy wins a huge pot after she told him to play the 63 off he was holding. Thus was born the "Jimmy Sommerfield".

Once, while playing down on the coast, a player wins a big pot. He slaps his cards down on the table and announces "I've got a Jimmy Somerfield!". Then Jimmy says "Let me introduce myself", and shows the player his ID.

I was dealing a four eight game one night to Jimmy, a few other dealers and a bunch of locals. A fairly loose game. The pot is capped six or eight way action. Jimmy announces preflop "I've got my hand!" Nobody believes him when the flop comes 6 6 3 He gets four or five callers to the river. Monster Pot!

I was in San Antone playing a big no-limit game with Jack Straus,Sen. Red Berry, and a bunch of the old-time players. Jack was on top of you all the time, but in full ring games, he wasn't as tough as he was shorthanded or heads up. He had two aces and I took the flop with a 6-2. A deuce came on the flop, he made a bet, and I called him. Off came another deuce on the turn, he bet, and I called him. A third deuce came on the river and we got all in. When I showed him that 6-2, he said, "What the hell were you drawing at there, Cowboy?"

"Oh, I wasn't drawing at nothing", I answered. "Just aiming at another deuce. I guess I'm Aimsworth."

However, there is a counter-argument that there used to be a club in London called the Presto Club. The address was 55 Victoria Street, London. Therefore, whenever someone was dealt 55 in hold'em, they'd say they were dealt "Presto", because of the club's street address. When English players played events worldwide, the word spread, and it caught on everywhere.