Please see this question community answer
It has Float as
Calling a bet on one street with the intention of winning the hand on a future street without going to showdown.
To me a float is a hand I think is good but no desire to inflate the pot. I do want to take it to showdown and hoping to avoid more bets.
I would like answers / comments before I edit.
And I would add Flat as slightly different as I am calling not sure it is good. Hoping to improve and don't want to inflate the pot. If it does not improve I may bluff it.