A form of draw poker low also known as deuce-to-seven, in which the best hand is 7-5-4-3-2 and straights and flushes count against you.
Form of lowball poker in which the worst poker hand (2, 3, 4, 5, 7 of different suits) is the best hand. It's also known as Deuce to Seven. Keep Them Honest To call at the end of a hand to prevent someone from bluffing.
A form of five card draw poker where the worst hand wins. The best hand is 2, 3, 4, 5 and 7 that is also not a flush.
A game of Lowball with the Ace as high. Therefore the best hand is 2-3-4-5-7.