Ah! We call that Pineapple.A. Waiting for their turn to enjoy some felt time
Cuckoo bird: Three hole cards; you discard one upon seeing the flop.
The remaining two are BOTH obligatory to use.
You could see it as 3-card Omaha switching to 2-card Omaha on the flop. A great lot less bloody, so NL.
We also play Atomic Pineapple Double board bombpots:
5 cards, two boards, ditch a card on the flop, then turn, then river.
Had the biggest pots ever recorded with that variant...