The state of being perfectly fine, not in any distress in any manner, way, shape, or form.
Eddie: How're you Karen?
Karen: I'm A-Okay!
Taking you pointer and thumb and making the I'm "A-OKAY" sign. Then using the circle created by your pointer and thumb to stroke your mans dick until he's feeling A-OKAY.
Lena: "So, what did you and Bradley do last night?"
Melissa: "I gave him a hand job using the A-OKAY"