"The fist pump is a celebratory gesture in which a fist is raised before the torso and subsequently drawn down and nearer to the body in a vigorous, swift motion. The fist pump....denote(s) enthusiasm, exuberance, or success and may be accompanied by a similarly energetic exclamation or vociferation. The gesture may be executed once or in a rapid series."
- definition of fist pump by Wikipedia
Harps made Fist Pump Friday. Check her out!