horseplay

n.

动手脚和大声欢笑的玩闹；

1. At first it was only horseplay,but it soon got out of hand and developed into full-scale fight.
   开始那只是喧闹的嬉戏，可是很快就失去了控制，发展成了全面的斗殴。

Horseplay
Horse Play
Horseplay
Dangerous horseplay
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Beyond the evil empire: Horseplay and aggression
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Doe v. City of Bellville: Should the Employer Differentiate Between Horseplay and Same-Sex Sexual Harassment?
Simulated Sodomy and Other Forms of Heterosexual 'Horseplay:' Same-Sex Sexual Harassment and The Myth of the Gender Monolith Before ...
The Art of Roughhousing: Good Old-Fashioned Horseplay and Why Every Kid Needs It/Big Body Play: Why Boisterous, Vigorous, and Very P...