This comes into play double-time when you roll over things like pencils and your ball is full of protruding objects.
Be prepared to have your ass handed to you by foes of the ninja variety... double time.
The actress worked some double time in the first season, appearing as Katherine in flashbacks to 1864.
Hopefully he had no idea how her heart beat double time occasionally at the strangest things.
Her heart did double time as he straightened and looked her way again.