master-fiving
Sometimes, nobody is around to celebrate with when you do something great. Or, maybe they are, but they aren't impressed with you. So, get to master-fiving!!! Put your right-hand up. Put your left-hand up. Slap 'em together as fast as you can until you're satisfied, and gratified.
John sat alone in his garage, changing the oil on his '67 Dodge Dart. After cranking the oil pan nut once last turn, he realized he was finished. So, he looked around for a friend to high-five, but was disappointed when he remembered he was alone. Without hesitating, he began master-fiving himself. Happy ending, indeed.