胡来

1. mess things up; fool with sth.

♦ 你要是不会修就别~。 If you don't know how to repair it, don't fool with it (or mess it up).

2. run wild; act irresponsibly or recklessly

♦ 他溜冰溜到了冰层很薄的地方, 真是~。 It was reckless of him to skate out onto the thin ice.