A maneuver in racket sports, most commonly tennis, where the athlete his a ball with the backside of their weak hand while spinning to return the ball.
Federer just had to finagle a bagel to win his match, that was incredible
When a girl eats a bagel with whitefish spread off your cock while blowing you.
Jeremy went home with Dorothy after synagogue. Dorothy went into the kitchen to prepare a bagel with whitefish spread for Jeremy. Upon completion he demanded, "Finagle My Bagel!"