2 sentences for 过头 (guò​tóu — overdo)

1. 玩笑别开过头了。

   wán​xiào bié kāi guò​tóu le.

   Don't take a joke too far.

   Source: OpenSubtitles

2. 他的玩笑开得有点过头了。

   tā de wán​xiào kāi de yǒu​diǎn guò​tóu le.

   His joke went a little too far.

   Source: Dong Chinese Dictionary