Rather stupid question

Doing some "functional java", I'm going to introduce a two-parameter function class.

Now, what would be the best name?

Function2? (sounds ugly)
Bifunction? (sounds misleading)
Function2Param? (long and stupid)

Frankly, I'm looking for a way to define typed lambdas in Java, but I have no clue how. It is probably just impossible.

get out of the car

This is a true account recorded in the Police Log of Sarasota, Florida.
An elderly Florida lady did her shopping and, upon returning to her
car, found four males in the act of leaving with her vehicle. She
dropped her shopping bags and drew her handgun, proceeding to scream at
the top of her lungs, "I have a gun, and I know how to use it! Get out
of the car!"
The four men didn't wait for a second threat. They got out and
ran like mad. The lady, somewhat shaken, then proceeded to load her
shopping bags into the back of the car and got into the driver's seat.
She was so shaken that she could not get her key into the ignition.
She tried and tried, and then she realized why, it was for the same
reason she had wondered why there was a football, a Frisbee and two 12
packs of beer in! the front seat.
A few minutes later, she found her own car parked four or five
spaces farther down. She loaded her bags into the car and drove to the
police station to report her mistake. The sergeant to whom she told
the story couldn't stop laughing. He pointed to the other end of the
counter, where four pale men were reporting a car jacking by a mad,
elderly woman described as white, less than five feet tall, glasses,
curly white hair, and carrying a large handgun. No charges were filed.
Moral of the story?! If you're going to have a Senior Moment, .
make it memorable!